Identification
- Summary
Clozapine is an antipsychotic drug used in treatment resistant schizophrenia and to decrease suicide risk in schizophrenic patients.
- Brand Names
- Clozaril, Fazaclo, Versacloz
- Generic Name
- Clozapine
- DrugBank Accession Number
- DB00363
- Background
A tricyclic dibenzodiazepine, classified as an atypical antipsychotic agent. It binds several types of central nervous system receptors, and displays a unique pharmacological profile. Clozapine is a serotonin antagonist, with strong binding to 5-HT 2A/2C receptor subtype. It also displays strong affinity to several dopaminergic receptors, but shows only weak antagonism at the dopamine D2 receptor, a receptor commonly thought to modulate neuroleptic activity. Agranulocytosis is a major adverse effect associated with administration of this agent.
- Type
- Small Molecule
- Groups
- Approved
- Structure
Structure for Clozapine (DB00363)
- Weight
- Average: 326.823
Monoisotopic: 326.129824335 - Chemical Formula
- C18H19ClN4
- Synonyms
- Clozapin
- Clozapina
- Clozapine
- Clozapinum
- External IDs
- HF 1854
- HF-1854
- LX 100-129
- W 108
Pharmacology
- Indication
For use in patients with treatment-resistant schizophrenia.
Reduce drug development failure ratesBuild, train, & validate machine-learning modelswith evidence-based and structured datasets.Build, train, & validate predictive machine-learning models with structured datasets.- Associated Conditions
- Contraindications & Blackbox Warnings
Avoid life-threatening adverse drug eventsImprove clinical decision support with information on contraindications & blackbox warnings, population restrictions, harmful risks, & more.Avoid life-threatening adverse drug events & improve clinical decision support.- Pharmacodynamics
Clozapine is a psychotropic agent belonging to the chemical class of benzisoxazole derivatives and is indicated for the treatment of schizophrenia. Clozapine is a selective monoaminergic antagonist with high affinity for the serotonin Type 2 (5HT2), dopamine Type 2 (D2), 1 and 2 adrenergic, and H1 histaminergic receptors. Clozapine acts as an antagonist at other receptors, but with lower potency. Antagonism at receptors other than dopamine and 5HT2 with similar receptor affinities may explain some of the other therapeutic and side effects of clozapine. Clozapine's antagonism of muscarinic M1-5 receptors may explain its anticholinergic effects. Clozapine's antagonism of histamine H1 receptors may explain the somnolence observed with this drug. Clozapine's antagonism of adrenergic a1 receptors may explain the orthostatic hypotension observed with this drug.
Patients should be counseled regarding the risk of hypersensitivity reactions such as agranulocytosis and myocarditis with clozapine use.9 Clozapine induced agranulocytosis, which is a reduction in the absolute neutrophil count or white blood cell count, places the patient at an increased risk for infection.8,9 Agranulocytosis is most likely to occur in the first 3-6 months of therapy, but it can still occur after years of treatment. The mechanism is thought to be a dose-independent and immune-mediated reaction against neutrophils.6 Patients are strictly monitored by lab testing (complete blood count with differential) to ensure agranulocytosis is detected and treated if it occurs.9 Testing is initially completed at one-week intervals but is expanded to two-week intervals at six months, and then four-week intervals at twelve months if lab results have been within an appropriate range. Monitoring parameters may change if there is any break in therapy. In Canada, the patient's lab values are reported to the manufacturer for hematological monitoring, and in the USA, the patient's lab values are reported to the REMS (Risk Evaluation and Mitigation Strategy) program.7 These programs function to notify the care provider of any significant drop in WBC/neutrophil count, or if there is a drop below a threshold level. Patients who enter the "Red" zone (WBC<2x109/L or ANC<1.5x109/L) should normally not be re-challenged. Clozapine-induced myocarditis is a hypersensitivity reaction that usually occurs in the third week of clozapine therapy and about 2% of clozapine patients.5 Monitor the patient's troponin, CRP, ECG at baseline, and 28 days into treatment. Follow guidelines for appropriate next steps according to the patient's lab results. If myocarditis occurs, the patient should not be re-challenged with clozapine.
- Mechanism of action
Clozapine's antipsychotic action is likely mediated through a combination of antogistic effects at D2 receptors in the mesolimbic pathway and 5-HT2A receptors in the frontal cortex. D2 antagonism relieves positive symptoms while 5-HT2A antagonism alleviates negative symptoms.
- Absorption
Rapid and almost complete.
- Volume of distribution
Not Available
- Protein binding
97% (bound to serum proteins)
- Metabolism
Hepatic
Hover over products below to view reaction partners
- Route of elimination
Approximately 50% of the administered dose is excreted in the urine and 30% in the feces.
- Half-life
8 hours (range 4-12 hours)
- Clearance
Not Available
- Adverse Effects
Improve decision support & research outcomesWith structured adverse effects data, including: blackbox warnings, adverse reactions, warning & precautions, & incidence rates.Improve decision support & research outcomes with our structured adverse effects data.- Toxicity
Clozapine carries a black-box warning for agranulocytosis.
- Pathways
- Not Available
- Pharmacogenomic Effects/ADRs
Interacting Gene/Enzyme Allele name Genotype(s) Defining Change(s) Type(s) Description Details Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-3 --- (T;T) TT allele ADR Directly Studied Patients with this genotype have increased weight gain with clozapine. Details Cytochrome P450 2D6 CYP2D6*3 Not Available C allele Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*4 Not Available C allele Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*5 Not Available Whole-gene deletion Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*6 Not Available 1707delT Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*7 Not Available 2935A>C Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*8 Not Available 1758G>T Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*11 Not Available 883G>C Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*12 Not Available 124G>A Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*13 Not Available CYP2D7/2D6 hybrid gene structure Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*14A Not Available 1758G>A Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*15 Not Available 137insT, 137_138insT Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*19 Not Available 2539_2542delAACT Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*20 Not Available 1973_1974insG Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*21 Not Available 2573insC Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*31 Not Available -1770G>A / -1584C>G … show all Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*36 Not Available 100C>T / -1426C>T … show all Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*38 Not Available 2587_2590delGACT Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*40 Not Available 1863_1864ins(TTT CGC CCC)2 Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*42 Not Available 3259_3260insGT Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*44 Not Available 2950G>C Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*47 Not Available 100C>T / -1426C>T … show all Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*51 Not Available -1584C>G / -1235A>G … show all Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*56 Not Available 3201C>T Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*57 Not Available 100C>T / 310G>T … show all Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*62 Not Available 4044C>T Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*68A Not Available -1426C>T / -1235A>G … show all Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*68B Not Available Similar but not identical switch region compared to CYP2D6*68A. Found in tandem arrangement with CYP2D6*4. Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*69 Not Available 2988G>A / -1426C>T … show all Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*92 Not Available 1995delC Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*100 Not Available -1426C>T / -1235A>G … show all Effect Inferred Poor drug metabolizer. Details Cytochrome P450 2D6 CYP2D6*101 Not Available -1426C>T / -1235A>G … show all Effect Inferred Poor drug metabolizer. Details
Interactions
- Drug Interactions
- This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.
Drug Interaction Integrate drug-drug
interactions in your software1,2-Benzodiazepine The risk or severity of adverse effects can be increased when 1,2-Benzodiazepine is combined with Clozapine. Abacavir Clozapine may decrease the excretion rate of Abacavir which could result in a higher serum level. Abametapir The serum concentration of Clozapine can be increased when it is combined with Abametapir. Abatacept The metabolism of Clozapine can be increased when combined with Abatacept. Abemaciclib The metabolism of Abemaciclib can be increased when combined with Clozapine. Abiraterone The serum concentration of Clozapine can be increased when it is combined with Abiraterone. Abrocitinib The metabolism of Abrocitinib can be decreased when combined with Clozapine. Acalabrutinib The metabolism of Acalabrutinib can be increased when combined with Clozapine. Acarbose The therapeutic efficacy of Acarbose can be decreased when used in combination with Clozapine. Acebutolol The metabolism of Acebutolol can be decreased when combined with Clozapine. 
Identify potential medication risksEasily compare up to 40 drugs with our drug interaction checker.Get severity rating, description, and management advice.Learn more - Food Interactions
- Avoid alcohol.
- Exercise caution with St. John's Wort. This herb induces both CYP3A4 and CYP1A2 metabolism and may reduce clozapine serum levels.
- Limit caffeine intake. Caffeine may reduce clozapine metabolism.
- Take with or without food. The absorption is unaffected by food.
Products
Drug product information from 10+ global regionsOur datasets provide approved product information including:dosage, form, labeller, route of administration, and marketing period.Access drug product information from over 10 global regions.- Product Ingredients
Ingredient UNII CAS InChI Key Clozapine hydrochloride 80862U56A3 54241-01-9 ARWPDHKDEREYEE-UHFFFAOYSA-N - Product Images
- International/Other Brands
- Azaleptine (Arpimed) / Cloment (Pharmaplan) / Clonex (Adeka) / Clopin (East West) / Clopine (Douglas) / Clopsine (Psicofarma) / Clorazem (Remedica) / Lanolept (Lannacher) / Lapenax (Novartis) / Leponex (Novartis) / Lodux (Rider) / Lozapin (Torrent) / Luften (Pharos) / Mezapin (Panbiotic) / Refract (Crescent) / Refraxol (AC Farma) / Sensipin (Beximco) / Sequax (Ivax) / Sizopin (Sun) / Sizopril (Meprofarm) / Syclop (Brown & Burk Phils) / Syzopin (Psyco Remedies) / Tanyl (Novamed) / Uspen (Yu Sheng) / Zapen (Psipharma) / Zapenia (Incepta) / Zapine (Taiwan Biotech) / Ziproc (Torrent) / Zopin (Psychotropics India)
- Brand Name Prescription Products
Name Dosage Strength Route Labeller Marketing Start Marketing End Region Image Clozapine Tablet 100 mg/1 Oral Heartwood Pharma 2019-04-15 Not applicable US 
Clozapine Tablet 100 mg/1 Oral Sandoz Inc. 2016-05-06 2021-03-31 US Clozapine Tablet 200 mg/1 Oral Heartwood Pharma 2019-07-30 Not applicable US Clozapine Tablet 25 mg/1 Oral Sandoz Inc. 2016-05-06 2021-06-30 US Clozapine Tablet 25 mg/1 Oral Heartwood Pharma 2019-04-15 Not applicable US Clozapine Tablet 50 mg/1 Oral Heartwood Pharma 2019-07-30 Not applicable US Clozapine Tablet 100 mg/1 Oral TEVA PHARMACEUTICALS USA 2008-03-17 2008-03-17 US Clozapine Tablets Tablet 25 mg Oral Innomar Strategies Inc. Not applicable Not applicable Canada 
Clozapine Tablets Tablet 100 mg Oral Innomar Strategies Inc. Not applicable Not applicable Canada Clozaril Tablet 25 mg/1 Oral TYA Pharmaceuticals 1989-09-30 Not applicable US - Generic Prescription Products
Name Dosage Strength Route Labeller Marketing Start Marketing End Region Image Aa-clozapine Tablet 200 mg Oral Aa Pharma Inc 2017-02-27 Not applicable Canada Aa-clozapine Tablet 25 mg Oral Aa Pharma Inc 2004-01-27 Not applicable Canada Aa-clozapine Tablet 50 mg Oral Aa Pharma Inc 2017-02-27 Not applicable Canada Aa-clozapine Tablet 100 mg Oral Aa Pharma Inc 2004-01-27 Not applicable Canada Auro-clozapine Tablet 50 mg Oral Auro Pharma Inc Not applicable Not applicable Canada Auro-clozapine Tablet 200 mg Oral Auro Pharma Inc Not applicable Not applicable Canada Auro-clozapine Tablet 25 mg Oral Auro Pharma Inc Not applicable Not applicable Canada Auro-clozapine Tablet 100 mg Oral Auro Pharma Inc Not applicable Not applicable Canada Clozapine Tablet, orally disintegrating 100 mg/1 Oral Teva Pharmaceuticals USA, Inc. 2017-07-25 Not applicable US Clozapine Tablet 100 mg/1 Oral Major Pharmaceuticals 2016-11-29 Not applicable US
Categories
- ATC Codes
- N05AH02 — Clozapine
- Drug Categories
- Adrenergic alpha-1 Receptor Antagonists
- Adrenergic alpha-Antagonists
- Adrenergic Antagonists
- Agents producing tachycardia
- Agents that produce hypertension
- Agents that reduce seizure threshold
- Anticholinergic Agents
- Antidepressive Agents
- Antipsychotic Agents
- Antipsychotic Agents (Second Generation [Atypical])
- Central Nervous System Agents
- Central Nervous System Depressants
- Cytochrome P-450 CYP1A2 Substrates
- Cytochrome P-450 CYP2A6 Substrates
- Cytochrome P-450 CYP2C19 Inhibitors
- Cytochrome P-450 CYP2C19 inhibitors (strength unknown)
- Cytochrome P-450 CYP2C19 Inhibitors (weak)
- Cytochrome P-450 CYP2C19 Substrates
- Cytochrome P-450 CYP2C8 Substrates
- Cytochrome P-450 CYP2C9 Substrates
- Cytochrome P-450 CYP2D6 Inhibitors
- Cytochrome P-450 CYP2D6 Inhibitors (moderate)
- Cytochrome P-450 CYP2D6 Substrates
- Cytochrome P-450 CYP3A Inducers
- Cytochrome P-450 CYP3A Inhibitors
- Cytochrome P-450 CYP3A Substrates
- Cytochrome P-450 CYP3A4 Inducers
- Cytochrome P-450 CYP3A4 Inducers (strength unknown)
- Cytochrome P-450 CYP3A4 Inhibitors
- Cytochrome P-450 CYP3A4 Inhibitors (moderate)
- Cytochrome P-450 CYP3A4 Substrates
- Cytochrome P-450 Enzyme Inducers
- Cytochrome P-450 Enzyme Inhibitors
- Cytochrome P-450 Substrates
- Diazepines, Oxazepines, Thiazepines and Oxepines
- Dibenzazepines
- Dopamine Antagonists
- Dopamine D2 Receptor Antagonists
- Drugs causing inadvertant photosensitivity
- Drugs that are Mainly Renally Excreted
- GABA Agents
- GABA Antagonists
- Heterocyclic Compounds, Fused-Ring
- Histamine Antagonists
- Histamine H1 Antagonists
- Hyperglycemia-Associated Agents
- Hypotensive Agents
- Moderate Risk QTc-Prolonging Agents
- Muscarinic Antagonists
- Nervous System
- Neurotoxic agents
- Neurotransmitter Agents
- P-glycoprotein substrates
- Photosensitizing Agents
- Psycholeptics
- Psychotropic Drugs
- QTc Prolonging Agents
- Serotonin 5-HT1 Receptor Antagonists
- Serotonin 5-HT1A Receptor Antagonists
- Serotonin 5-HT1D Receptor Antagonists
- Serotonin 5-HT2 Receptor Antagonists
- Serotonin 5-HT2A Receptor Antagonists
- Serotonin 5-HT2C Receptor Antagonists
- Serotonin Agents
- Serotonin Receptor Antagonists
- Tranquilizing Agents
- UGT1A4 substrates
- Chemical TaxonomyProvided by Classyfire
- Description
- This compound belongs to the class of organic compounds known as dibenzodiazepines. These are compounds containing a dibenzodiazepine moiety, which consists of two benzene connected by diazepine ring.
- Kingdom
- Organic compounds
- Super Class
- Organoheterocyclic compounds
- Class
- Benzodiazepines
- Sub Class
- Dibenzodiazepines
- Direct Parent
- Dibenzodiazepines
- Alternative Parents
- 1,4-benzodiazepines / N-methylpiperazines / Imidolactams / Benzenoids / Aryl chlorides / Trialkylamines / Secondary amines / Propargyl-type 1,3-dipolar organic compounds / Carboxamidines / Azacyclic compounds show 3 more
- Substituents
- 1,4-benzodiazepine / 1,4-diazinane / Amidine / Amine / Aromatic heteropolycyclic compound / Aryl chloride / Aryl halide / Azacycle / Benzenoid / Carboxylic acid amidine show 16 more
- Molecular Framework
- Aromatic heteropolycyclic compounds
- External Descriptors
- N-arylpiperazine, organochlorine compound, N-methylpiperazine, benzodiazepine (CHEBI:3766)
- Affected organisms
- Humans and other mammals
Chemical Identifiers
- UNII
- J60AR2IKIC
- CAS number
- 5786-21-0
- InChI Key
- QZUDBNBUXVUHMW-UHFFFAOYSA-N
- InChI
- InChI=1S/C18H19ClN4/c1-22-8-10-23(11-9-22)18-14-4-2-3-5-15(14)20-16-7-6-13(19)12-17(16)21-18/h2-7,12,20H,8-11H2,1H3
- IUPAC Name
- 6-chloro-10-(4-methylpiperazin-1-yl)-2,9-diazatricyclo[9.4.0.0^{3,8}]pentadeca-1(15),3,5,7,9,11,13-heptaene
- SMILES
- CN1CCN(CC1)C1=NC2=CC(Cl)=CC=C2NC2=CC=CC=C12
References
- Synthesis Reference
Schmutz, J. and Hunziker, F.; US. Patent 3,539,573; November 10, 1970 .
US3539573- General References
- Alvir JM, Lieberman JA, Safferman AZ, Schwimmer JL, Schaaf JA: Clozapine-induced agranulocytosis. Incidence and risk factors in the United States. N Engl J Med. 1993 Jul 15;329(3):162-7. [Article]
- Vaddadi KS, Soosai E, Vaddadi G: Low blood selenium concentrations in schizophrenic patients on clozapine. Br J Clin Pharmacol. 2003 Mar;55(3):307-9. [Article]
- Naheed M, Green B: Focus on clozapine. Curr Med Res Opin. 2001;17(3):223-9. [Article]
- Lane HY, Chang YC, Chang WH, Lin SK, Tseng YT, Jann MW: Effects of gender and age on plasma levels of clozapine and its metabolites: analyzed by critical statistics. J Clin Psychiatry. 1999 Jan;60(1):36-40. [Article]
- Ronaldson KJ, Fitzgerald PB, Taylor AJ, Topliss DJ, McNeil JJ: A new monitoring protocol for clozapine-induced myocarditis based on an analysis of 75 cases and 94 controls. Aust N Z J Psychiatry. 2011 Jun;45(6):458-65. doi: 10.3109/00048674.2011.572852. Epub 2011 Apr 27. [Article]
- Wicinski M, Weclewicz MM: Clozapine-induced agranulocytosis/granulocytopenia: mechanisms and monitoring. Curr Opin Hematol. 2018 Jan;25(1):22-28. doi: 10.1097/MOH.0000000000000391. [Article]
- Borrelli EP, Lee EY, Caffrey AR: Clozapine and hematologic adverse reactions: Impact of the Risk Evaluation and Mitigation Strategy program. Ment Health Clin. 2020 May 7;10(3):70-75. doi: 10.9740/mhc.2020.05.070. eCollection 2020 May. [Article]
- Kar N, Barreto S, Chandavarkar R: Clozapine Monitoring in Clinical Practice: Beyond the Mandatory Requirement. Clin Psychopharmacol Neurosci. 2016 Nov 30;14(4):323-329. doi: 10.9758/cpn.2016.14.4.323. [Article]
- Clozaril® (clozapine) tablets[package insert]. Rosemont, Pennsylvania: HLS Therapeutics (USA), Inc. 2017 [Link]
- External Links
- Human Metabolome Database
- HMDB0014507
- KEGG Drug
- D00283
- KEGG Compound
- C06924
- PubChem Compound
- 2818
- PubChem Substance
- 46506474
- ChemSpider
- 10442628
- BindingDB
- 50001884
- 2626
- ChEBI
- 3766
- ChEMBL
- CHEMBL42
- ZINC
- ZINC000019796155
- Therapeutic Targets Database
- DAP000029
- PharmGKB
- PA449061
- Guide to Pharmacology
- GtP Drug Page
- RxList
- RxList Drug Page
- Drugs.com
- Drugs.com Drug Page
- PDRhealth
- PDRhealth Drug Page
- Wikipedia
- Clozapine
- FDA label
- Download (89.8 KB)
Clinical Trials
- Clinical Trials
Phase Status Purpose Conditions Count 4 Completed Basic Science Schizoaffective Disorders / Schizophrenia 1 4 Completed Health Services Research Schizophrenia 1 4 Completed Treatment Cannabis Abuse / Cannabis Dependence / Dual Diagnosis / Schizophrenia 1 4 Completed Treatment Cannabis Abuse / Dual Diagnosis / Psychosis / Schizoaffective Disorders / Schizophrenia 1 4 Completed Treatment Panic Disorder 1 4 Completed Treatment Psychosis / Schizophrenia 1 4 Completed Treatment Psychosis / Schizophrenia / Schizophrenia, Childhood 1 4 Completed Treatment Schizoaffective Disorders / Schizophrenia 2 4 Completed Treatment Schizoaffective Disorders / Schizophrenia / Schizophreniform Disorders 1 4 Completed Treatment Schizophrenia 8
Pharmacoeconomics
- Manufacturers
- Azur pharma international iii ltd
- Caraco pharmaceutical laboratories ltd
- Ivax pharmaceuticals inc sub teva pharmaceuticals usa
- Mylan pharmaceuticals inc
- Par pharmaceutical
- Sandoz inc
- Novartis pharmaceuticals corp
- Packagers
- Alamo Pharmaceuticals LLC
- Amerisource Health Services Corp.
- Avanir Pharmaceuticals
- AzurPharma Inc.
- Caraco Pharmaceutical Labs
- Cardinal Health
- Cima Laboratories Inc.
- Heartland Repack Services LLC
- Ivax Pharmaceuticals
- Murfreesboro Pharmaceutical Nursing Supply
- Mylan
- Neuman Distributors Inc.
- Novartis AG
- Novopharm Ltd.
- Physicians Total Care Inc.
- Resource Optimization and Innovation LLC
- Sandhills Packaging Inc.
- Teva Pharmaceutical Industries Ltd.
- UDL Laboratories
- Dosage Forms
Form Route Strength Suspension Oral Tablet 100 mg Tablet 200 mg Tablet 25 mg Tablet 50 mg Tablet Oral Tablet, film coated Oral 100 mg Tablet, coated Oral 25 mg Tablet Oral 200 mg/1 Tablet Oral 50 mg/1 Tablet, orally disintegrating Oral 100 mg/1 Tablet, orally disintegrating Oral 12.5 mg/1 Tablet, orally disintegrating Oral 150 mg/1 Tablet, orally disintegrating Oral 200 mg/1 Tablet, orally disintegrating Oral 25 mg/1 Tablet Oral 100 mg/1 Tablet Oral 25 mg/1 Tablet Oral 100 MG Tablet, film coated Oral 25 mg Tablet Oral 25 MG Tablet, film coated Oral 105 mg Tablet, orally disintegrating Oral 50 mg/1 Suspension Oral 50 mg / mL Tablet Oral 200 mg Tablet Oral 50 mg Suspension Oral 50 mg/1mL - Prices
Unit description Cost Unit Fazaclo 100 mg odt 6.55USD tablet Clozapine 200 mg tablet 6.32USD tablet Clozaril 100 mg tablet 5.84USD tablet Clozapine 100 mg tablet 3.33USD tablet Apo-Clozapine 100 mg Tablet 2.77USD tablet Gen-Clozapine 100 mg Tablet 2.77USD tablet Fazaclo 25 mg odt 2.4USD tablet Fazaclo 25 mg tablet 2.19USD tablet Clozaril 25 mg tablet 1.96USD tablet Fazaclo 12.5 mg odt 1.79USD tablet Clozapine 50 mg tablet 1.65USD tablet Clozapine 25 mg tablet 1.28USD tablet Apo-Clozapine 25 mg Tablet 0.69USD tablet Gen-Clozapine 25 mg Tablet 0.69USD tablet DrugBank does not sell nor buy drugs. Pricing information is supplied for informational purposes only.- Patents
Patent Number Pediatric Extension Approved Expires (estimated) Region US5178878 No 1993-01-12 2010-01-12 US US6221392 No 2001-04-24 2018-04-09 US US6024981 No 2000-02-15 2018-04-09 US US6106861 No 2000-08-22 2017-12-05 US US8057811 No 2011-11-15 2028-05-01 US
Properties
- State
- Solid
- Experimental Properties
Property Value Source melting point (°C) 183-184 °C PhysProp water solubility 11.8 mg/L Not Available logP 3.23 HANSCH,C ET AL. (1995) pKa 7.5 EL TAYAR,N ET AL. (1985) - Predicted Properties
Property Value Source Water Solubility 0.186 mg/mL ALOGPS logP 3.67 ALOGPS logP 3.4 ChemAxon logS -3.2 ALOGPS pKa (Strongest Acidic) 15.9 ChemAxon pKa (Strongest Basic) 7.35 ChemAxon Physiological Charge 1 ChemAxon Hydrogen Acceptor Count 4 ChemAxon Hydrogen Donor Count 1 ChemAxon Polar Surface Area 30.87 Å2 ChemAxon Rotatable Bond Count 0 ChemAxon Refractivity 97.36 m3·mol-1 ChemAxon Polarizability 35.75 Å3 ChemAxon Number of Rings 4 ChemAxon Bioavailability 1 ChemAxon Rule of Five Yes ChemAxon Ghose Filter Yes ChemAxon Veber's Rule Yes ChemAxon MDDR-like Rule No ChemAxon - Predicted ADMET Features
Property Value Probability Human Intestinal Absorption + 0.9904 Blood Brain Barrier + 0.9614 Caco-2 permeable + 0.6151 P-glycoprotein substrate Substrate 0.8684 P-glycoprotein inhibitor I Inhibitor 0.6791 P-glycoprotein inhibitor II Inhibitor 0.7407 Renal organic cation transporter Inhibitor 0.8049 CYP450 2C9 substrate Non-substrate 0.7509 CYP450 2D6 substrate Substrate 0.8919 CYP450 3A4 substrate Substrate 0.6088 CYP450 1A2 substrate Inhibitor 0.5722 CYP450 2C9 inhibitor Non-inhibitor 0.9432 CYP450 2D6 inhibitor Inhibitor 0.8932 CYP450 2C19 inhibitor Non-inhibitor 0.9026 CYP450 3A4 inhibitor Non-inhibitor 0.9137 CYP450 inhibitory promiscuity Low CYP Inhibitory Promiscuity 0.571 Ames test Non AMES toxic 0.9132 Carcinogenicity Non-carcinogens 0.9106 Biodegradation Not ready biodegradable 1.0 Rat acute toxicity 3.0838 LD50, mol/kg Not applicable hERG inhibition (predictor I) Weak inhibitor 0.8189 hERG inhibition (predictor II) Inhibitor 0.7164
Spectra
- Mass Spec (NIST)
- Not Available
- Spectra
Targets
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- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Antagonist
- General Function
- Potassium channel regulator activity
- Specific Function
- Dopamine receptor whose activity is mediated by G proteins which inhibit adenylyl cyclase.
- Gene Name
- DRD2
- Uniprot ID
- P14416
- Uniprot Name
- D(2) dopamine receptor
- Molecular Weight
- 50618.91 Da
References
- Green AI, Salomon MS, Brenner MJ, Rawlins K: Treatment of schizophrenia and comorbid substance use disorder. Curr Drug Targets CNS Neurol Disord. 2002 Apr;1(2):129-39. [Article]
- Weizman T, Pick CG, Backer MM, Rigai T, Bloch M, Schreiber S: The antinociceptive effect of amisulpride in mice is mediated through opioid mechanisms. Eur J Pharmacol. 2003 Oct 8;478(2-3):155-9. [Article]
- Young RM, Lawford BR, Barnes M, Burton SC, Ritchie T, Ward WK, Noble EP: Prolactin levels in antipsychotic treatment of patients with schizophrenia carrying the DRD2*A1 allele. Br J Psychiatry. 2004 Aug;185:147-51. [Article]
- Stonehouse AH, Jones FS: Bromocriptine and clozapine regulate dopamine 2 receptor gene expression in the mouse striatum. J Mol Neurosci. 2005;25(1):29-36. [Article]
- Takano A, Suhara T, Kusumi I, Takahashi Y, Asai Y, Yasuno F, Ichimiya T, Inoue M, Sudo Y, Koyama T: Time course of dopamine D2 receptor occupancy by clozapine with medium and high plasma concentrations. Prog Neuropsychopharmacol Biol Psychiatry. 2006 Jan;30(1):75-81. Epub 2005 Jul 22. [Article]
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Antagonist
- General Function
- Virus receptor activity
- Specific Function
- G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various drugs and psychoactive substances, including mescaline, psilocybin, 1-(2,5-dimethoxy-4-iodop...
- Gene Name
- HTR2A
- Uniprot ID
- P28223
- Uniprot Name
- 5-hydroxytryptamine receptor 2A
- Molecular Weight
- 52602.58 Da
References
- Goldstein JM: Quetiapine fumarate (Seroquel): a new atypical antipsychotic. Drugs Today (Barc). 1999 Mar;35(3):193-210. [Article]
- McDonald LM, Moran PM, Vythelingum GN, Joseph MH, Stephenson JD, Gray JA: Enhancement of latent inhibition by two 5-HT2A receptor antagonists only when given at both pre-exposure and conditioning. Psychopharmacology (Berl). 2003 Sep;169(3-4):321-31. Epub 2002 Aug 9. [Article]
- Broderick PA, Hope O, Okonji C, Rahni DN, Zhou Y: Clozapine and cocaine effects on dopamine and serotonin release in nucleus accumbens during psychostimulant behavior and withdrawal. Prog Neuropsychopharmacol Biol Psychiatry. 2004 Jan;28(1):157-71. [Article]
- Heiser P, Schulte E, Hausmann C, Becker R, Remschmidt H, Krieg JC, Vedder H: Effects of clozapine and its metabolites on the 5-HT2 receptor system in cortical and hippocampal cells in vitro. Prog Neuropsychopharmacol Biol Psychiatry. 2004 Mar;28(2):297-302. [Article]
- Reist C, Mazzanti C, Vu R, Fujimoto K, Goldman D: Inter-relationships of intermediate phenotypes for serotonin function, impulsivity, and a 5-HT2A candidate allele: His452Tyr. Mol Psychiatry. 2004 Sep;9(9):871-8. [Article]
- Leysen JE, Janssen PM, Megens AA, Schotte A: Risperidone: a novel antipsychotic with balanced serotonin-dopamine antagonism, receptor occupancy profile, and pharmacologic activity. J Clin Psychiatry. 1994 May;55 Suppl:5-12. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- G-protein coupled amine receptor activity
- Specific Function
- Dopamine receptor whose activity is mediated by G proteins which activate adenylyl cyclase.
- Gene Name
- DRD1
- Uniprot ID
- P21728
- Uniprot Name
- D(1A) dopamine receptor
- Molecular Weight
- 49292.765 Da
References
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- G-protein coupled amine receptor activity
- Specific Function
- Dopamine receptor whose activity is mediated by G proteins which inhibit adenylyl cyclase. Promotes cell proliferation.
- Gene Name
- DRD3
- Uniprot ID
- P35462
- Uniprot Name
- D(3) dopamine receptor
- Molecular Weight
- 44224.335 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Sh3 domain binding
- Specific Function
- Dopamine receptor responsible for neuronal signaling in the mesolimbic system of the brain, an area of the brain that regulates emotion and complex behavior. Its activity is mediated by G proteins ...
- Gene Name
- DRD4
- Uniprot ID
- P21917
- Uniprot Name
- D(4) dopamine receptor
- Molecular Weight
- 48359.86 Da
References
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
- Zhao AL, Zhao JP, Zhang YH, Xue ZM, Chen JD, Chen XG: Dopamine D4 receptor gene exon III polymorphism and interindividual variation in response to clozapine. Int J Neurosci. 2005 Nov;115(11):1539-47. [Article]
- Nakane M, Cowart MD, Hsieh GC, Miller L, Uchic ME, Chang R, Terranova MA, Donnelly-Roberts DL, Namovic MT, Miller TR, Wetter JM, Marsh K, Stewart AO, Brioni JD, Moreland RB: 2-[4-(3,4-Dimethylphenyl)piperazin-1-ylmethyl]-1H benzoimidazole (A-381393), a selective dopamine D4 receptor antagonist. Neuropharmacology. 2005 Jul;49(1):112-21. Epub 2005 Apr 1. [Article]
- Kuballa G, Nowak P, Labus L, Bortel A, Dabrowska J, Swoboda M, Kwiecinski A, Kostrzewa RM, Brus R: Central effects of nafadotride, a dopamine D3 receptor antagonist, in rats. Comparison with haloperidol and clozapine. Pharmacol Rep. 2005 Mar-Apr;57(2):161-9. [Article]
- Glatt SJ, Faraone SV, Tsuang MT: Schizophrenia is not associated with DRD4 48-base-pair-repeat length or individual alleles: results of a meta-analysis. Biol Psychiatry. 2003 Sep 15;54(6):629-35. [Article]
- Patel S, Chapman KL, Marston D, Hutson PH, Ragan CI: Pharmacological and functional characterisation of dopamine D4 receptors in the rat retina. Neuropharmacology. 2003 Jun;44(8):1038-46. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Serotonin receptor activity
- Specific Function
- G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various drugs and psychoactive substances. Ligand binding causes a conformation change that triggers...
- Gene Name
- HTR1A
- Uniprot ID
- P08908
- Uniprot Name
- 5-hydroxytryptamine receptor 1A
- Molecular Weight
- 46106.335 Da
References
- Hagino Y, Watanabe M: Effects of clozapine on the efflux of serotonin and dopamine in the rat brain: the role of 5-HT1A receptors. Can J Physiol Pharmacol. 2002 Dec;80(12):1158-66. [Article]
- Chou YH, Halldin C, Farde L: Occupancy of 5-HT1A receptors by clozapine in the primate brain: a PET study. Psychopharmacology (Berl). 2003 Mar;166(3):234-40. Epub 2003 Feb 13. [Article]
- Newman-Tancredi A, Rivet JM, Cussac D, Touzard M, Chaput C, Marini L, Millan MJ: Comparison of hippocampal G protein activation by 5-HT(1A) receptor agonists and the atypical antipsychotics clozapine and S16924. Naunyn Schmiedebergs Arch Pharmacol. 2003 Sep;368(3):188-99. Epub 2003 Aug 16. [Article]
- Zahorodna A, Bobula B, Grzegorzewska M, Tokarski K, Hess G: The influence of repeated administration of clozapine and haloperidol on the effects of the activation of 5-HT(1A), 5-HT(2) and 5-HT(4) receptors in rat frontal cortex. J Physiol Pharmacol. 2004 Jun;55(2):371-9. [Article]
- Tomic M, Kundakovic M, Butorovic B, Janac B, Andric D, Roglic G, Ignjatovic D, Kostic-Rajacic S: Pharmacological evaluation of selected arylpiperazines with atypical antipsychotic potential. Bioorg Med Chem Lett. 2004 Aug 16;14(16):4263-6. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Serotonin receptor activity
- Specific Function
- G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for ergot alkaloid derivatives, various anxiolytic and antidepressant drugs and other psychoactive subst...
- Gene Name
- HTR1B
- Uniprot ID
- P28222
- Uniprot Name
- 5-hydroxytryptamine receptor 1B
- Molecular Weight
- 43567.535 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Serotonin receptor activity
- Specific Function
- G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for ergot alkaloid derivatives, various anxiolytic and antidepressant drugs and other psychoactive subst...
- Gene Name
- HTR1D
- Uniprot ID
- P28221
- Uniprot Name
- 5-hydroxytryptamine receptor 1D
- Molecular Weight
- 41906.38 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Serotonin receptor activity
- Specific Function
- G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various alkaloids and psychoactive substances. Ligand binding causes a conformation change that trig...
- Gene Name
- HTR1E
- Uniprot ID
- P28566
- Uniprot Name
- 5-hydroxytryptamine receptor 1E
- Molecular Weight
- 41681.57 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Voltage-gated potassium channel activity
- Specific Function
- This is one of the several different receptors for 5-hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. This receptor is a ligand-gate...
- Gene Name
- HTR3A
- Uniprot ID
- P46098
- Uniprot Name
- 5-hydroxytryptamine receptor 3A
- Molecular Weight
- 55279.835 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Serotonin receptor activity
- Specific Function
- G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various drugs and psychoactive substances, including ergot alkaloid derivatives, 1-2,5,-dimethoxy-4-...
- Gene Name
- HTR2C
- Uniprot ID
- P28335
- Uniprot Name
- 5-hydroxytryptamine receptor 2C
- Molecular Weight
- 51820.705 Da
References
- Sodhi MS, Airey DC, Lambert W, Burnet PW, Harrison PJ, Sanders-Bush E: A rapid new assay to detect RNA editing reveals antipsychotic-induced changes in serotonin-2C transcripts. Mol Pharmacol. 2005 Sep;68(3):711-9. Epub 2005 May 25. [Article]
- Navailles S, De Deurwaerdere P, Spampinato U: Clozapine and haloperidol differentially alter the constitutive activity of central serotonin2C receptors in vivo. Biol Psychiatry. 2006 Mar 15;59(6):568-75. Epub 2005 Sep 22. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Serotonin receptor activity
- Specific Function
- This is one of the several different receptors for 5-hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. The activity of this receptor ...
- Gene Name
- HTR6
- Uniprot ID
- P50406
- Uniprot Name
- 5-hydroxytryptamine receptor 6
- Molecular Weight
- 46953.625 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Serotonin receptor activity
- Specific Function
- This is one of the several different receptors for 5-hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. The activity of this receptor ...
- Gene Name
- HTR7
- Uniprot ID
- P34969
- Uniprot Name
- 5-hydroxytryptamine receptor 7
- Molecular Weight
- 53554.43 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Histamine receptor activity
- Specific Function
- In peripheral tissues, the H1 subclass of histamine receptors mediates the contraction of smooth muscles, increase in capillary permeability due to contraction of terminal venules, and catecholamin...
- Gene Name
- HRH1
- Uniprot ID
- P35367
- Uniprot Name
- Histamine H1 receptor
- Molecular Weight
- 55783.61 Da
References
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
- Roegge CS, Perraut C, Hao X, Levin ED: Histamine H1 receptor involvement in prepulse inhibition and memory function: relevance for the antipsychotic actions of clozapine. Pharmacol Biochem Behav. 2007 Apr;86(4):686-92. Epub 2007 Feb 22. [Article]
- Leysen JE, Janssen PM, Megens AA, Schotte A: Risperidone: a novel antipsychotic with balanced serotonin-dopamine antagonism, receptor occupancy profile, and pharmacologic activity. J Clin Psychiatry. 1994 May;55 Suppl:5-12. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Histamine receptor activity
- Specific Function
- The H4 subclass of histamine receptors could mediate the histamine signals in peripheral tissues. Displays a significant level of constitutive activity (spontaneous activity in the absence of agoni...
- Gene Name
- HRH4
- Uniprot ID
- Q9H3N8
- Uniprot Name
- Histamine H4 receptor
- Molecular Weight
- 44495.375 Da
References
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
- Sugata Y, Okano M, Fujiwara T, Matsumoto R, Hattori H, Yamamoto M, Nishibori M, Nishizaki K: Histamine H4 receptor agonists have more activities than H4 agonism in antigen-specific human T-cell responses. Immunology. 2007 Jun;121(2):266-75. Epub 2007 Mar 7. [Article]
- Smits RA, Lim HD, Stegink B, Bakker RA, de Esch IJ, Leurs R: Characterization of the histamine H4 receptor binding site. Part 1. Synthesis and pharmacological evaluation of dibenzodiazepine derivatives. J Med Chem. 2006 Jul 27;49(15):4512-6. [Article]
- Adachi N, Liu K, Motoki A, Nishibori M, Arai T: Suppression of ischemia/reperfusion liver injury by histamine H4 receptor stimulation in rats. Eur J Pharmacol. 2006 Aug 21;544(1-3):181-7. Epub 2006 Jun 29. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Protein heterodimerization activity
- Specific Function
- This alpha-adrenergic receptor mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system. Its effect is mediated by G(q) and G(11) prot...
- Gene Name
- ADRA1A
- Uniprot ID
- P35348
- Uniprot Name
- Alpha-1A adrenergic receptor
- Molecular Weight
- 51486.005 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Protein heterodimerization activity
- Specific Function
- This alpha-adrenergic receptor mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system. Its effect is mediated by G(q) and G(11) prot...
- Gene Name
- ADRA1B
- Uniprot ID
- P35368
- Uniprot Name
- Alpha-1B adrenergic receptor
- Molecular Weight
- 56835.375 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Thioesterase binding
- Specific Function
- Alpha-2 adrenergic receptors mediate the catecholamine-induced inhibition of adenylate cyclase through the action of G proteins. The rank order of potency for agonists of this receptor is oxymetazo...
- Gene Name
- ADRA2A
- Uniprot ID
- P08913
- Uniprot Name
- Alpha-2A adrenergic receptor
- Molecular Weight
- 48956.275 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Epinephrine binding
- Specific Function
- Alpha-2 adrenergic receptors mediate the catecholamine-induced inhibition of adenylate cyclase through the action of G proteins. The rank order of potency for agonists of this receptor is clonidine...
- Gene Name
- ADRA2B
- Uniprot ID
- P18089
- Uniprot Name
- Alpha-2B adrenergic receptor
- Molecular Weight
- 49565.8 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Protein homodimerization activity
- Specific Function
- Alpha-2 adrenergic receptors mediate the catecholamine-induced inhibition of adenylate cyclase through the action of G proteins.
- Gene Name
- ADRA2C
- Uniprot ID
- P18825
- Uniprot Name
- Alpha-2C adrenergic receptor
- Molecular Weight
- 49521.585 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Phosphatidylinositol phospholipase c activity
- Specific Function
- The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the...
- Gene Name
- CHRM1
- Uniprot ID
- P11229
- Uniprot Name
- Muscarinic acetylcholine receptor M1
- Molecular Weight
- 51420.375 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- G-protein coupled acetylcholine receptor activity
- Specific Function
- The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the...
- Gene Name
- CHRM2
- Uniprot ID
- P08172
- Uniprot Name
- Muscarinic acetylcholine receptor M2
- Molecular Weight
- 51714.605 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Receptor activity
- Specific Function
- The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the...
- Gene Name
- CHRM3
- Uniprot ID
- P20309
- Uniprot Name
- Muscarinic acetylcholine receptor M3
- Molecular Weight
- 66127.445 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Guanyl-nucleotide exchange factor activity
- Specific Function
- The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the...
- Gene Name
- CHRM4
- Uniprot ID
- P08173
- Uniprot Name
- Muscarinic acetylcholine receptor M4
- Molecular Weight
- 53048.65 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General Function
- Phosphatidylinositol phospholipase c activity
- Specific Function
- The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the...
- Gene Name
- CHRM5
- Uniprot ID
- P08912
- Uniprot Name
- Muscarinic acetylcholine receptor M5
- Molecular Weight
- 60073.205 Da
References
- Nasrallah HA: Atypical antipsychotic-induced metabolic side effects: insights from receptor-binding profiles. Mol Psychiatry. 2008 Jan;13(1):27-35. Epub 2007 Sep 11. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Unknown
- General Function
- Clathrin light chain binding
- Specific Function
- Interacts with clathrin light chain A and stimulates clathrin self-assembly and clathrin-mediated endocytosis.
- Gene Name
- CALY
- Uniprot ID
- Q9NYX4
- Uniprot Name
- Neuron-specific vesicular protein calcyon
- Molecular Weight
- 23433.49 Da
References
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- General Function
- S-nitrosoglutathione binding
- Specific Function
- Conjugation of reduced glutathione to a wide number of exogenous and endogenous hydrophobic electrophiles. Regulates negatively CDK5 activity via p25/p35 translocation to prevent neurodegeneration.
- Gene Name
- GSTP1
- Uniprot ID
- P09211
- Uniprot Name
- Glutathione S-transferase P
- Molecular Weight
- 23355.625 Da
References
- Boerma JS, Vermeulen NP, Commandeur JN: Application of CYP102A1M11H as a tool for the generation of protein adducts of reactive drug metabolites. Chem Res Toxicol. 2011 Aug 15;24(8):1263-74. doi: 10.1021/tx2001515. Epub 2011 Jun 16. [Article]
Enzymes
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
- Specific Function
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
- Gene Name
- CYP1A2
- Uniprot ID
- P05177
- Uniprot Name
- Cytochrome P450 1A2
- Molecular Weight
- 58293.76 Da
References
- Brosen K: Drug interactions and the cytochrome P450 system. The role of cytochrome P450 1A2. Clin Pharmacokinet. 1995;29 Suppl 1:20-5. [Article]
- Wang B, Zhou SF: Synthetic and natural compounds that interact with human cytochrome P450 1A2 and implications in drug development. Curr Med Chem. 2009;16(31):4066-218. [Article]
- Fang J, Coutts RT, McKenna KF, Baker GB: Elucidation of individual cytochrome P450 enzymes involved in the metabolism of clozapine. Naunyn Schmiedebergs Arch Pharmacol. 1998 Nov;358(5):592-9. [Article]
- Carrillo JA, Benitez J: Clinically significant pharmacokinetic interactions between dietary caffeine and medications. Clin Pharmacokinet. 2000 Aug;39(2):127-53. [Article]
- Flockhart Table of Drug Interactions [Link]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- SubstrateInhibitor
- General Function
- Steroid hydroxylase activity
- Specific Function
- Responsible for the metabolism of many drugs and environmental chemicals that it oxidizes. It is involved in the metabolism of drugs such as antiarrhythmics, adrenoceptor antagonists, and tricyclic...
- Gene Name
- CYP2D6
- Uniprot ID
- P10635
- Uniprot Name
- Cytochrome P450 2D6
- Molecular Weight
- 55768.94 Da
References
- Chetty M, Murray M: CYP-mediated clozapine interactions: how predictable are they? Curr Drug Metab. 2007 May;8(4):307-13. [Article]
- Prior TI, Baker GB: Interactions between the cytochrome P450 system and the second-generation antipsychotics. J Psychiatry Neurosci. 2003 Mar;28(2):99-112. [Article]
- Fischer V, Vogels B, Maurer G, Tynes RE: The antipsychotic clozapine is metabolized by the polymorphic human microsomal and recombinant cytochrome P450 2D6. J Pharmacol Exp Ther. 1992 Mar;260(3):1355-60. [Article]
- Clozapine Therapy and CYP2D6, CYP1A2, and CYP3A4 Genotypes [Link]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- Curator comments
- Enzyme action is based on in vitro study findings.
- General Function
- Steroid hydroxylase activity
- Specific Function
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
- Gene Name
- CYP2C9
- Uniprot ID
- P11712
- Uniprot Name
- Cytochrome P450 2C9
- Molecular Weight
- 55627.365 Da
References
- Jung F, Richardson TH, Raucy JL, Johnson EF: Diazepam metabolism by cDNA-expressed human 2C P450s: identification of P4502C18 and P4502C19 as low K(M) diazepam N-demethylases. Drug Metab Dispos. 1997 Feb;25(2):133-9. [Article]
- Chetty M, Murray M: CYP-mediated clozapine interactions: how predictable are they? Curr Drug Metab. 2007 May;8(4):307-13. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- SubstrateInhibitorInducer
- General Function
- Vitamin d3 25-hydroxylase activity
- Specific Function
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation react...
- Gene Name
- CYP3A4
- Uniprot ID
- P08684
- Uniprot Name
- Cytochrome P450 3A4
- Molecular Weight
- 57342.67 Da
References
- Prior TI, Chue PS, Tibbo P, Baker GB: Drug metabolism and atypical antipsychotics. Eur Neuropsychopharmacol. 1999 Jun;9(4):301-9. [Article]
- Fang J, Coutts RT, McKenna KF, Baker GB: Elucidation of individual cytochrome P450 enzymes involved in the metabolism of clozapine. Naunyn Schmiedebergs Arch Pharmacol. 1998 Nov;358(5):592-9. [Article]
- Ring BJ, Binkley SN, Vandenbranden M, Wrighton SA: In vitro interaction of the antipsychotic agent olanzapine with human cytochromes P450 CYP2C9, CYP2C19, CYP2D6 and CYP3A. Br J Clin Pharmacol. 1996 Mar;41(3):181-6. [Article]
- Chetty M, Murray M: CYP-mediated clozapine interactions: how predictable are they? Curr Drug Metab. 2007 May;8(4):307-13. [Article]
- Clozapine Therapy and CYP2D6, CYP1A2, and CYP3A4 Genotypes [Link]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- SubstrateInhibitor
- General Function
- Steroid hydroxylase activity
- Specific Function
- Responsible for the metabolism of a number of therapeutic agents such as the anticonvulsant drug S-mephenytoin, omeprazole, proguanil, certain barbiturates, diazepam, propranolol, citalopram and im...
- Gene Name
- CYP2C19
- Uniprot ID
- P33261
- Uniprot Name
- Cytochrome P450 2C19
- Molecular Weight
- 55930.545 Da
References
- Ring BJ, Binkley SN, Vandenbranden M, Wrighton SA: In vitro interaction of the antipsychotic agent olanzapine with human cytochromes P450 CYP2C9, CYP2C19, CYP2D6 and CYP3A. Br J Clin Pharmacol. 1996 Mar;41(3):181-6. [Article]
- Fang J, Coutts RT, McKenna KF, Baker GB: Elucidation of individual cytochrome P450 enzymes involved in the metabolism of clozapine. Naunyn Schmiedebergs Arch Pharmacol. 1998 Nov;358(5):592-9. [Article]
- Prior TI, Chue PS, Tibbo P, Baker GB: Drug metabolism and atypical antipsychotics. Eur Neuropsychopharmacol. 1999 Jun;9(4):301-9. [Article]
- Piatkov I, Caetano D, Assur Y, Lau SL, Coelho M, Jones T, Nguyen T, Boyages S, McLean M: CYP2C19*17 protects against metabolic complications of clozapine treatment. World J Biol Psychiatry. 2017 Oct;18(7):521-527. doi: 10.1080/15622975.2017.1347712. Epub 2017 Jul 18. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- Curator comments
- The information supporting this enzyme action in the literature is limited to one study.
- General Function
- Steroid hydroxylase activity
- Specific Function
- Exhibits a high coumarin 7-hydroxylase activity. Can act in the hydroxylation of the anti-cancer drugs cyclophosphamide and ifosphamide. Competent in the metabolic activation of aflatoxin B1. Const...
- Gene Name
- CYP2A6
- Uniprot ID
- P11509
- Uniprot Name
- Cytochrome P450 2A6
- Molecular Weight
- 56501.005 Da
References
- Dragovic S, Gunness P, Ingelman-Sundberg M, Vermeulen NP, Commandeur JN: Characterization of human cytochrome P450s involved in the bioactivation of clozapine. Drug Metab Dispos. 2013 Mar;41(3):651-8. doi: 10.1124/dmd.112.050484. Epub 2013 Jan 7. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Steroid hydroxylase activity
- Specific Function
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
- Gene Name
- CYP2C8
- Uniprot ID
- P10632
- Uniprot Name
- Cytochrome P450 2C8
- Molecular Weight
- 55824.275 Da
References
- Fang J, Coutts RT, McKenna KF, Baker GB: Elucidation of individual cytochrome P450 enzymes involved in the metabolism of clozapine. Naunyn Schmiedebergs Arch Pharmacol. 1998 Nov;358(5):592-9. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Trimethylamine monooxygenase activity
- Specific Function
- Involved in the oxidative metabolism of a variety of xenobiotics such as drugs and pesticides. It N-oxygenates primary aliphatic alkylamines as well as secondary and tertiary amines. Plays an impor...
- Gene Name
- FMO3
- Uniprot ID
- P31513
- Uniprot Name
- Dimethylaniline monooxygenase [N-oxide-forming] 3
- Molecular Weight
- 60032.975 Da
References
- Zhou SF, Zhou ZW, Yang LP, Cai JP: Substrates, inducers, inhibitors and structure-activity relationships of human Cytochrome P450 2C9 and implications in drug development. Curr Med Chem. 2009;16(27):3480-675. Epub 2009 Sep 1. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Protein homodimerization activity
- Specific Function
- UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the...
- Gene Name
- UGT1A4
- Uniprot ID
- P22310
- Uniprot Name
- UDP-glucuronosyltransferase 1-4
- Molecular Weight
- 60024.535 Da
References
- Zhou SF, Zhou ZW, Yang LP, Cai JP: Substrates, inducers, inhibitors and structure-activity relationships of human Cytochrome P450 2C9 and implications in drug development. Curr Med Chem. 2009;16(27):3480-675. Epub 2009 Sep 1. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inducer
- General Function
- Vitamin d 24-hydroxylase activity
- Specific Function
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally un...
- Gene Name
- CYP1A1
- Uniprot ID
- P04798
- Uniprot Name
- Cytochrome P450 1A1
- Molecular Weight
- 58164.815 Da
References
- Prior TI, Chue PS, Tibbo P, Baker GB: Drug metabolism and atypical antipsychotics. Eur Neuropsychopharmacol. 1999 Jun;9(4):301-9. [Article]
Transporters
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- Xenobiotic-transporting atpase activity
- Specific Function
- Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells.
- Gene Name
- ABCB1
- Uniprot ID
- P08183
- Uniprot Name
- Multidrug resistance protein 1
- Molecular Weight
- 141477.255 Da
References
- Boulton DW, DeVane CL, Liston HL, Markowitz JS: In vitro P-glycoprotein affinity for atypical and conventional antipsychotics. Life Sci. 2002 May 31;71(2):163-9. [Article]
Drug created at June 13, 2005 13:24 / Updated at October 07, 2022 09:51