| Abciximab Action Pathway (old) |  | Drug Action | Abciximab |
| Acalabrutinib Predicted Metabolism Pathway |  | Metabolic | Mesoheme / Acalabrutinib |
| ACE |  | Physiological | Glutamic acid / Zinc |
| Acebutolol Action Pathway |  | Drug Action | ATP / Acebutolol / Calcium |
| Acebutolol Action Pathway |  | Drug Action | ATP / Acebutolol / Potassium cation / Calcium |
| Acebutolol Predicted Metabolism Pathway |  | Metabolic | Acebutolol / Mesoheme |
| Aceclofenac Action Pathway |  | Drug Action | Glutathione / Dinoprostone / Calcium / Mesoheme / Prostaglandin G2 / Arachidonic Acid / Aceclofenac |
| Acemetacin Action Pathway |  | Drug Action | Glutathione / Indomethacin / Dinoprostone / Calcium / Mesoheme / Prostaglandin G2 / Arachidonic Acid / Acemetacin |
| Acenocoumarol Action Pathway |  | Drug Action | Phylloquinone / Calcium / Acenocoumarol |
| Acenocoumarol Predicted Metabolism Pathway |  | Metabolic | Acenocoumarol / Mesoheme |
| Acepromazine - Serotonin Antagonist Action Pathway |  | Drug Action | Pyridoxal phosphate / Tryptophan / Sapropterin / Calcium / Iron / Acepromazine / Oxitriptan |
| Acepromazine Dopamine Antagonist Action Pathway |  | Drug Action | Pyridoxal phosphate / Tyrosine / Sapropterin / Dopamine / Levodopa / Calcium / Iron / Acepromazine |
| Aceprometazine H1 Antihistamine Neurological Sleep Action Pathway |  | Drug Action | Pyridoxal phosphate / Histidine / Calcium / Aceprometazine |
| Aceprometazine H1 Antihistamine Smooth Muscle Relaxation Action Pathway |  | Drug Action | Calcium / Magnesium cation / Aceprometazine |
| Aceprometazine H1-Antihistamine Blood Vessel Constriction Action Pathway |  | Drug Action | Arginine / Citrulline / Sapropterin / Nitric Oxide / Calcium / Magnesium cation / Aceprometazine / Mesoheme / Flavin adenine dinucleotide / Flavin mononucleotide |
| Aceprometazine H1-Antihistamine Immune Response Action Pathway |  | Drug Action | Calcium / Aceprometazine |
| Acetaminophen Action Pathway |  | Drug Action | Glutamic acid / Glutathione / Acetaminophen / Dinoprostone / Calcium / Magnesium cation / Zinc / Prostaglandin D2 / Mesoheme / Prostaglandin G2 / Arachidonic Acid |
| Acetaminophen Action Pathway (New) |  | Drug Action | Glutathione / Acetaminophen / Dinoprostone / Calcium / Mesoheme / Prostaglandin G2 / Arachidonic Acid |
| Acetaminophen Metabolism Pathway |  | Drug Metabolism | Glutathione / NADH / ATP / Acetaminophen / Mesoheme / Uridine-5'-Diphosphate |
| Acetarsol Drug Metabolism |  | Metabolic | Acetarsol |
| Acetic acid Drug Metabolism |  | Metabolic | Acetic acid |
| Acetohydroxamic acid Drug Metabolism |  | Metabolic | Acetohydroxamic acid |
| Acetyl sulfisoxazole Drug Metabolism |  | Metabolic | Acetyl sulfisoxazole |
| Acetylene Drug Metabolism |  | Metabolic | Acetylene |
| Acetylsalicylic Acid Action Pathway |  | Drug Action | Glutamic acid / Glutathione / Dinoprostone / Acetylsalicylic acid / Calcium / Magnesium cation / Zinc / Prostaglandin D2 / Mesoheme / Prostaglandin G2 / Arachidonic Acid |