Carprofen is a non-steroidal anti-inflammatory drug that veterinarians prescribe as a supportive treatment for various conditions. It provides day-to-day treatment for pain and inflammation from arthritis in geriatric dogs, joint pain, osteoarthritis, hip dysplasia, and other forms of joint deterioration. It is also used to relieve short-term post-operative pain, inflammation, and swelling after spaying, neutering, and other procedures. Carprofen reduces inflammation by inhibition of COX-2 and other sources of inflammatory prostaglandins. This is targeted protection, in that it does not interfere with COX-1 activity.

Carphenazine dimaleate is an antipsychotic agent, mainly used for the treatment of chronic schizophrenia.

Carglumic acid is an orphan drug, marketed by Orphan Europe under the trade name Carbaglu. Carglumic acid is used for the treatment of hyperammonaemia in patients with N-acetylglutamate synthase deficiency. The initial daily dose ranges from 100 to 250 mg/kg, adjusted thereafter to maintain normal plasma levels of ammonia.

Carbachol is a cholinomimetic drug that binds and activates the acetylcholine receptor. Thus it is classified as a cholinergic agonist. It is primarily used for various ophthalmic purposes, such as for treating glaucoma, or for use during ophthalmic surgery. It is generally administered as an ophthalmic solution (i.e. eyedrops).

Buspirone HCl is an anxiolytic psychotropic drug of the azapirone chemical class. It is primarily used to treat generalized anxiety disorder (GAD). Unlike most drugs predominantly used to treat anxiety, buspirone's pharmacology is not related to benzodiazepines or barbiturates, and so does not carry the risk of physical dependence and withdrawal symptoms for which those drug classes are known.

Bupropion or bupropion hydrochloride, also known formerly as amfebutamone, is a medication primarily used as an antidepressant and smoking cessation aid. It is one of the most frequently prescribed antidepressants in the United States, although in many English-speaking countries, including the United Kingdom, Australia and New Zealand, this is an off-label use. Chemically, bupropion is in the aminoketone family. Bupropion serves as an atypical antidepressant different from most commonly prescribed antidepressants such as selective serotonin reuptake inhibitors (SSRIs). It is an effective antidepressant on its own, but is also popular as an add-on medication in cases of incomplete response to first-line SSRI antidepressants.

Buclizine is an antihistamine and anticholinergic of the piperazine derivative family. It is considered to be an antiemetic, similar to meclizine.

Bromfenac is a non-steroidal anti-inflammatory drug (NSAID) marketed in the US as an ophthalmic solution by ISTA Pharmaceuticals for short-term, local use. Prolensa and Bromday are the once-daily formulation of bromfenac, while Xibrom was approved for twice-daily administration. Bromfenac is indicated for the treatment of ocular inflammation and pain after cataract surgery, though it may be prescribed in an off-label manner by the physician. The high degree of penetration and potency of bromfenac can be attributed to the halogenation of the molecule: by adding a bromine moiety the NSAID becomes highly lipophilic which allows for rapid, sustained drug levels in the ocular tissues.

Bopindolol malonate is a non-selective, potent, long-acting beta adrenoceptor antagonist. It demonstrates inhibition of H2O2-induced lipid peroxdiation. Bopindolol malonate slowly dissociates into the active metabolites 4-(3-tert-butylamino-2-hydroxypropoxy)-2-methyl indole and 4-(3-tert-butylaminopropoxy)-2-carboxyl indole which both demonstrate potent β1-adrenoceptor blocking activity.

Biotin, also known as vitamin H or coenzyme R, is a water-soluble B-vitamin (vitamin B7). It is composed of a ureido (tetrahydroimidizalone) ring fused with a tetrahydrothiophene ring. A valeric acid substituent is attached to one of the carbon atoms of the tetrahydrothiophene ring. Biotin is a coenzyme for carboxylase enzymes, involved in the synthesis of fatty acids, isoleucine, and valine, and in gluconeogenesis.

Bifonazole is an imidazole antifungal drug. Bifonazole has dual mode of action. It blocks transformation of 24-methylendihydrolanosterol to desmethylsterol in fungi together with inhibition of HMG-CoA. This enables fungicidal properties against dermatophytes and distinguishes bifonazole from other antifungal drugs. Bifonazole is marketed by Bayer under the trade mark Canespor in ointment form.

Bevantolol Hydrochloride is a beta-1 adrenoceptor antagonist that has been shown to be as effective as other beta blockers for the treatment of angina pectoris and hypertension.

Bethanidine sulfate is a guanidinium antihypertensive agent that acts by blocking adrenergic transmission.

Betaxolol Hydrochloride is the hydrochloride salt form of betaxolol, a β1-AR selective adrenergic receptor antagonist. Betaxolol hydrochloride acts on the heart and circulatory system and decreases cardiac contractility and rate, and cardiac output levels. When applied topically in the eye, it lowers intraocular pressure by reducing aqueous humor secretion.

Benzthiazide is a research compound with diuretic and antihypertensive properties used in the treatment of high blood pressure and edema.

Benzquinamide hydrochloride is a benzquinamide is an antiemetic compound with antihistaminic, mild anticholinergic, and sedative properties. The mechanism of action is not known, but presumably benzquinamide works via antagonism of muscarinic acetycholine receptors and histamine H1 receptors.

Benztropine is a synthetic compound derived from the combination of atropine and diphenhydramine that acts centrally to antagonize M1 muscarinic acetylcholine receptors. Benztropine has been used in the management of Parkinson’s disease symptoms to address involuntary tremor and dystonia. It can also increase the availability of dopamine by inhibiting uptake through the dopamine transporter.

Bentiromide is a peptide used as a screening test for exocrine pancreatic insufficiency and to monitor the adequacy of supplemental pancreatic therapy. It is given by mouth as a noninvasive test. The amount of 4-aminobenzoic acid and its metabolites excreted in the urine is taken as a measure of the chymotrypsin-secreting activity of the pancreas.

Bendroflumethiazide is a thiazide diuretic used to treat hypertension. Bendroflumethiazide works by inhibiting sodium reabsorption at the beginning of the distal convoluted tubule and may play an important role in the treatment of mild heart failure.

Azlocillin Sodium is the sodium salt form of azlocillin, a semisynthetic, extended spectrum acylampicillin with antibacterial activity. Azlocillin binds to penicillin-binding proteins (PBPs) located inside the bacterial cell wall, thereby inhibiting the cross-linkage of peptidoglycans, which are critical components of the bacterial cell wall. This prevents proper bacterial cell wall synthesis, thereby results in the weakening of the bacterial cell wall and eventually leading to cell lysis.

Atorvastatin is used primarily for lowering blood cholesterol and for prevention of events associated with cardiovascular disease. Like all statins, atorvastatin works by inhibiting HMG-CoA reductase, an enzyme found in liver tissue that plays a key role in production of cholesterol in the body.Atorvastatin is also used for the treatment of dyslipidemia.

Arformoterol tartrate is a long acting beta-adrenoceptor agonist drug indicated for the treatment of chronic obstructive pulmonary disease (COPD). It is sold by Sunovion, under the trade name Brovana, as a solution of arformoterol tartrate to be administered twice daily (morning and evening) by nebulization. It is the active (R,R)-enantiomer of formoterol and was approved by the United States Food and Drug Administration (FDA) on October 6, 2006 for the treatment of COPD.

Aprindine HCl is a Class 1b antiarrhythmic agent used to manage ventricular and supraventricular arrhythmias. In one study, it delayed atrial fibrillation more than digoxin did. It has shown effectiveness when given orally.

Apraclonidine HCl, also known as Iopidine, is a sympathomimetic used in glaucoma therapy. It is an α2-adrenergic agonist and a weak alpha-1 adrenergic receptor agonist. Upon ocular administration, apraclonidine enhances aqueous humor uveoscleral outflow and decreases aqueous production by vasoconstriction.

Antazoline is a 1st generation antihistamine with anticholinergic properties used to relieve nasal congestion and in eye drops, usually in combination with naphazoline, to relieve the symptoms of allergic conjunctivitis. Antazoline is an ethylenediamine derivative with histamine H1 antagonistic and sedative properties. Antazoline antagonizes histamine H1 receptor and prevents the typical allergic symptoms caused by histamine activities on capillaries, skin, mucous membranes, and gastrointestinal and bronchial smooth muscles.

Octatropine methylbromide (INN) or anisotropine methylbromide (USAN), trade names Valpin, Endovalpin, Lytispasm and others, is a muscarinic antagonist and antispasmodic. It was introduced to the U.S. market in 1963 as an adjunct in the treatment of peptic ulcer, and promoted as being more specific to the gastrointestinal tract than other anticholinergics. Anisotropine methylbromide is a quaternary ammonium compound. Its use as treatment adjunct in peptic ulcer has been replaced by the use of more effective agents. Depending on the dose, anisotropine methylbromide may reduce the motility and secretory activity of the gastrointestinal system, and the tone of the ureter and urinary bladder and may have a slight relaxant action on the bile ducts and gallbladder. In general, smaller doses of anisotropine methylbromide inhibit salivary and bronchial secretions, sweating, and accommodation; cause dilatation of the pupil; and increase the heart rate. Larger doses are required to decrease motility of the gastrointestinal and urinary tracts and to inhibit gastric acid secretion.

Anisindione (brand name Miradon) is a synthetic anticoagulant and an indanedione derivative. It prevents the formation of active procoagulation factors II, VII, IX, and X, as well as the anticoagulant proteins C and S, in the liver by inhibiting the vitamin K–mediated gamma-carboxylation of precursor proteins.

Anagrelide (Agrylin/Xagrid, Shire and Thromboreductin, AOP Orphan Pharmaceuticals) is a drug used for the treatment of essential thrombocytosis (ET; essential thrombocythemia), or overproduction of blood platelets. It also has been used in the treatment of chronic myeloid leukemia. Anagrelide works by inhibiting the maturation of platelets from megakaryocytes. The mechanism of action of anagrelide is as a Phosphodiesterase 3 Inhibitor. The physiologic effect of anagrelide is by means of Decreased Platelet Production. Anagrelide is a synthetic quinazoline derivative, Anagrelide reduces platelet production through a decrease in megakaryocyte maturation. Anagrelide inhibits cyclic AMP phosphodiesterase, as well as ADP- and collagen-induced platelet aggregation. At therapeutic doses, it does not influence white cell counts or coagulation parameters. Anagrelide is used for treatment of essential thrombocythemia to reduce elevated platelet counts and the risk of thrombosis.

Ampicillin is an antibiotic used to prevent and treat a number of bacterial infections. This includes respiratory tract infections, urinary tract infections, meningitis, salmonella infections, and endocarditis. It may also be used to prevent group B streptococcal infection in newborns. It is used by mouth, by injection into a muscle, or intravenously. It is not useful for the treatment of viral infections. Ampicillin was developed in 1961. It is on the World Health Organization's List of Essential Medicines, the most important medication needed in a basic health system. Ampicillin is in the penicillin group of beta-lactam antibiotics and is part of the aminopenicillin family. It is roughly equivalent to amoxicillin in terms of activity. Ampicillin is able to penetrate Gram-positive and some Gram-negative bacteria. It differs from penicillin G, or benzylpenicillin, only by the presence of an amino group. That amino group helps the drug penetrate the outer membrane of Gram-negative bacteria. Ampicillin acts as an irreversible inhibitor of the enzyme transpeptidase, which is needed by bacteria to make their cell walls. It inhibits the third and final stage of bacterial cell wall synthesis in binary fission, which ultimately leads to cell lysis; therefore ampicillin is usually bacteriocidal.

Amlodipine (as besylate, mesylate or maleate) is a medication used to lower blood pressure and prevent chest pain. It belongs to a group of medications known as dihydropyridine-type calcium channel blockers. By widening of blood vessels it lowers blood pressure. In angina, amlodipine increases blood flow to the heart muscle to relieve pain due to angina.