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Felodipine
go.drugbank.com/drugs/DB01023ApprovedIt acts primarily on vascular smooth muscle cells by stabilizing voltage-gated L-type calcium channels in their inactive conformation. … By inhibiting the influx of calcium in smooth muscle cells, felodipine prevents calcium-dependent myocyte contraction and vasoconstriction.
Interferon alfa-2a
go.drugbank.com/drugs/DB00034ApprovedInvestigationalWithdrawnAn oral form is being developed by Amarillo Biosciences. … This protein is produced by recombinant DNA technology and resembles interferon secreted by leukocytes. It is used extensively as an antiviral or antineoplastic agent.
Xanthan gum
go.drugbank.com/drugs/DB11253ApprovedXanthan gum is a polysaccharide gum derived from* Xanthomonas campestris* by a pure-culture fermentation process and purified by recovery with isopropyl alcohol. … Xanthan gum is a direct food additive permitted for direct addition to food for human consumption by the FDA. It is used as a thickening agent and stabilizer in emulsions.
Etripamil
go.drugbank.com/drugs/DB12605ApprovedInvestigational[A275243, A275248] The nasal formulation of etripamil was first approved by the FDA on December 12, 2025 for the conversion of acute symptomatic episodes of paroxysmal supraventricular tachycardia (PSVT
Methacholine
go.drugbank.com/drugs/DB06709Approved[A229648, L31763] Methacholine was granted FDA approval on October 31, 1986, and is marketed under the trademark PROVOCHOLINE® by Methapharm Inc.[L31763] … [A229598, A229603] Although the underlying pathology of AHR is complex, ASM contraction can be stimulated by cholinergic agonists that activate M<sub>3</sub> muscarinic receptors that stimulate ASM contraction
Gadobenic acid
go.drugbank.com/drugs/DB00743ApprovedInvestigational[A1139] Gadobenate dimeglumine was approved by the FDA in November 2004 under the brand name MultiHance.[A263166] … [A263166] As gadobenate dimeglumine is specifically taken up by hepatocytes and excreted through the biliary system, it is a useful contrast agent for liver MRI.
REP8839
go.drugbank.com/drugs/DB05224ExperimentalREP8839 is a novel methionyl-tRNA synthetase (MetS) inhibitor being developed by Replidyne (GlaxoSmithKline licensed REP8839 to Replidyne in June of 2003).
Crenolanib
go.drugbank.com/drugs/DB11832InvestigationalCrenolanib is under investigation for the treatment of Diffuse Intrinsic Pontine Glioma and Progressive or Refractory High-Grade Glioma.
Spesolimab
go.drugbank.com/drugs/DB15626ApprovedInvestigationalIt is a humanized monoclonal immunoglobulin G1 antibody that was produced in Chinese hamster ovary (CHO) cells by recombinant DNA technology. … The biosimilar of the drug, spesolimab-sbzo, was first approved by the FDA in September 2022 to treat generalized pustular psoriasis flares.
Berberine
go.drugbank.com/drugs/DB04115ApprovedInvestigationalWithdrawnIt is relatively toxic parenterally, but has been used orally for various parasitic and fungal infections and as antidiarrheal.