Atovaquone is a medication used to treat or prevent for pneumocystis pneumonia, toxoplasmosis, malaria, and babesia.

ATP (Adenosine-Triphosphate)

Atracurium besylate is a non-depolarizing neuromuscular blocking agent with short duration of action. Its lack of significant cardiovascular effects and its lack of dependence on good kidney function for elimination provide clinical advantage over alternate non-depolarizing neuromuscular blocking agents.

Avobenzone(Parsol 1789)

Azasetron Hydrochloride is a 5-HT3 receptor antagonist which is used as an anti-emetic.

Azathioprine (Azasan, Imuran)

Azelastine HCl is a potent, second-generation, selective, histamine antagonist.

Azelnidipine is an L-type calcium channel protein inhibitor

Azilsartan(TAK-536) is a specific and potent angiotensin II type 1 receptor antagonist with IC50 of 2.6 nM.

Azithromycin (Zithromax)

Azomycin (2-Nitroimidazole)

Aztreonam (Azactam, Cayston)

Bacitracin zinc

Baclofen is a gamma-amino-butyric acid (GABA) derivative used as a skeletal muscle relaxant.

Balofloxacin

Bambuterol Hcl is a long acting beta-adrenoceptor agonist (LABA) used in the treatment of asthma; it also is a prodrug of terbutaline.

Beclometasone dipropionate is a potent glucocorticoid agonist; it is a prodrug of the free form, beclometasone.

Benazepril hydrochloride, an angiotensin converting enzyme inhibitor, which is a medication used to treat high blood pressure.

Benserazide is a peripherally-acting aromatic L-amino acid decarboxylase (AAAD) or DOPA decarboxylase inhibitor.

Betahistine Dihydrochloride is a histamine H3 receptors inhibitor used as an antivertigo drug.

Betamethasone (Celestone)

Betapar(Meprednisone)