The active component of FLOVENT HFA 44 mcg Inhalation Aerosol, FLOVENT HFA 110 mcg Inhalation Aerosol, and FLOVENT HFA 220 mcg Inhalation Aerosol is fluticasone propionate, a corticosteroid having the chemical name -(fluoromethyl) 6α,9-difluoro-11β,17-dihydroxy-16α-methyl-3-oxoandrosta-1,4-diene-17β-carbothioate, 17-propionate and the following chemical structure:… Continue Reading


Femara tablets for oral administration contains 2.5 mg of letrozole, a nonsteroidal aromatase inhibitor (inhibitor of estrogen synthesis). It is chemically described as 4,4′-(1H-1,2,4-Triazol-1-ylmethylene)dibenzonitrile, and its structural formula is Letrozole is a white to yellowish crystalline powder, practically odorless, freely… Continue Reading


FOSAMAX PLUS D contains alendronate sodium, a bisphosphonate, and cholecalciferol (vitamin D). Alendronate sodium is a bisphosphonate that acts as a specific inhibitor of osteoclast-mediated bone resorption. Bisphosphonates are synthetic analogs of pyrophosphate that bind to the hydroxyapatite found in… Continue Reading


Famciclovir tablets contains famciclovir, an orally administered prodrug of the antiviral agent penciclovir. Chemically, famciclovir is known as 2-[2-(2-amino-9-purin-9-yl)ethyl]-1,3-propanediol diacetate. It is a synthetic acyclic guanine derivative and has the following structure: CHNO M.W. 321.3 Famciclovir is a white to… Continue Reading


Levoleucovorin is the levo isomeric form of racemic -leucovorin, present as the calcium salt. Levoleucovorin is the pharmacologically active isomer of leucovorin [(6-S)-leucovorin]. Fusilev for Injection and Fusilev Injection contain levoleucovorin calcium, which is one of several active, chemically reduced… Continue Reading


Felbatol® (felbamate) is an antiepileptic available as 400 mg and 600 mg tablets and as a 600 mg/5 mL suspension for oral administration. Its chemical name is 2-phenyl-1,3-propanediol dicarbamate. Felbamate is a white to off-white crystalline powder with a characteristic… Continue Reading


Fentanyl transdermal system is a transdermal system providing continuous systemic delivery of fentanyl, a potent opioid analgesic, for 72 hours. The chemical name is N-Phenyl-N-(1-(2-phenylethyl)-4-piperidinyl) propanamide. The structural formula is: The molecular weight of fentanyl base is 336.5, and the… Continue Reading

Flavoxate Hydrochloride

Flavoxate hydrochloride tablets contain flavoxate hydrochloride, a synthetic urinary tract spasmolytic. Chemically, flavoxate hydrochloride is 2-piperidinoethyl 3-methyl-4-oxo-2-phenyl-4-1-benzopyran-8-carboxylate hydrochloride. The empirical formula of flavoxate hydrochloride is CHNO•HCl. The molecular weight is 427.94. The structural formula appears below. Each tablet for oral… Continue Reading


Focalin XR is an extended-release formulation of dexmethylphenidate with a bi-modal release profile. Focalin XR uses the proprietary SODAS (Spheroidal Oral Drug Absorption System) technology. Each bead-filled Focalin XR capsule contains half the dose as immediate-release beads and half as… Continue Reading


Each 1.0 mg is erythrosine (FD and C red Dye No.3) free. each tablet 1mg (full-strength) contains 1 mg F* from 2.2 mg sodium fluoride (NaF). Each tablet for oral administration contains sodium fluoride equivalent to fluoride 1 mg and… Continue Reading