Propranolol hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as (±)-1-(Isopropylamino)-3-(1-naphthyloxy)-2- propanol hydrochloride. Its structural formula is: Propranolol hydrochloride is a stable, white crystalline solid which is readily soluble in water and ethanol. Propranolol hydrochloride is available as… Continue Reading


The active ingredient in PRILOSEC (omeprazole) Delayed-Release Capsules is a substituted benzimidazole, 5-methoxy-2-[[(4-methoxy-3, 5-dimethyl-2-pyridinyl) methyl] sulfinyl]-1-benzimidazole, a compound that inhibits gastric acid secretion. Its empirical formula is CHNOS, with a molecular weight of 345.42. The structural formula is:    STRUCTURE… Continue Reading


Phenytoin sodium is an antiepileptic drug. Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-Diphenylhydantoin sodium salt, having a molecular weight of 274.25 and having the following structural formula… Continue Reading

Pantoprazole Sodium

The active ingredient in pantoprazole sodium delayed-release tablets is a substituted benzimidazole, sodium 5-(difluoromethoxy)-2-[[(3,4-dimethoxy-2-pyridinyl)methyl] sulfinyl]-1-benzimidazole sesquihydrate, a compound that inhibits gastric acid secretion. Its empirical formula is CHFNNaOS x 1.5 HO, with a molecular weight of 432.4. The structural formula… Continue Reading


PLAVIX (clopidogrel bisulfate) is an inhibitor of ADP-induced platelet aggregation acting by direct inhibition of adenosine diphosphate (ADP) binding to its receptor and of the subsequent ADP-mediated activation of the glycoprotein GPIIb/IIIa complex. Chemically it is methyl (+)-()-α-(2-chlorophenyl)-6,7-dihydrothieno[3,2-c]pyridine-5(4)-acetate sulfate (1:1).… Continue Reading


Prochlorperazine is a phenothiazine derivative, present in prochlorperazine tablets as the maleate. Prochlorperazine maleate is designated chemically as 2-chloro-10-[3-(4-methyl-1- piperazinyl)propyl] phenothiazine maleate and has the following structural formula: Prochlorperazine maleate is classified as an anti-emetic and antipsychotic agent. Prochlorperazine maleate… Continue Reading

Perrigo Citalopram

Citalopram HBr is an orally administered selective serotonin reuptake inhibitor (SSRI) with a chemical structure unrelated to that of other SSRIs or of tricyclic, tetracyclic, or other available antidepressant agents. Citalopram HBr is a racemic bicyclic phthalane derivative designated (±)-1-(3-dimethylaminopropyl)-1-(4-fluorophenyl)-1,… Continue Reading


Prozac (fluoxetine capsules, USP and fluoxetine oral solution, USP) is a psychotropic drug for oral administration. It is also marketed for the treatment of premenstrual dysphoric disorder (Sarafem, fluoxetine hydrochloride). It is designated (±)-N-methyl-3-phenyl-3-[(α,α,α-trifluoro–tolyl)oxy]propylamine hydrochloride and has the empirical formula… Continue Reading

Parafon DSC

Each caplet (round shaped tablet) contains: Chlorzoxazone                    500 mg Inactive ingredients: Colloidal Silicon Dioxide, Croscarmellose Sodium, docusate Sodium, lactose anhydrous, magnesium stearate, microcrystalline cellulose, sodium benzoate, D&C yellow No. 10 alum. Lake, FD&C blue no. 1 alum. Lake HT

Phentermine Hydrochloride

Phentermine hydrochloride USP has the chemical name of α, α-Dimethylphenethylamine hydrochloride. The structural formula is as follows: Phentermine hydrochloride is a white, odorless, hygroscopic, crystalline powder which is soluble in water and lower alcohols, slightly soluble in chloroform and insoluble… Continue Reading