Vecuronium Bromide for Injection is a nondepolarizing neuromuscular blocking agent of intermediate duration, chemically designated as 1-(3α,17β-Dihydroxy-2β-piperidino-5α-androstan-16β,5α-yl)-1-methylpiperidinium bromide, diacetate. The structural formula is: Its chemical formula is CHBrNO with molecular weight 637.73. Vecuronium Bromide for Injection is supplied as a… Continue Reading


Venlafaxine hydrochloride is a structurally novel antidepressant for oral administration. It is designated (R/S)-1-[2-(dimethylamino)-1-(4-methoxyphenyl)ethyl] cyclohexanol hydrochloride or (±)-1-[α-[(dimethyl-amino)methyl]-p-methoxybenzyl] cyclohexanol hydrochloride and has the molecular formula of CHNO HCl. Its molecular weight is 313.87. The structural formula is shown below. Venlafaxine… Continue Reading


The active ingredients of VIMOVO are naproxen which is a NSAID and esomeprazole magnesium which is a Proton Pump Inhibitor (PPI). VIMOVO is available as an oval, yellow, multi-layer, delayed release tablet combining an enteric coated naproxen core and an… Continue Reading


VUSION contains the synthetic antifungal agent, miconazole nitrate (0.25%) USP, zinc oxide (15%) USP, and white petrolatum (81.35%) USP. The chemical name of miconazole nitrate is 1-[2, 4-dichloro-ß-{(2,4-dichlorobenzyl)oxy} phenethyl] imidazole mononitrate with empirical formula CHClNO•HNO and molecular weight of 479.15.… Continue Reading


Vivotif (Typhoid Vaccine Live Oral Ty21a) is a live attenuated vaccine for oral administration only. The vaccine contains the attenuated strain Ty21a (1,2). Vivotif is manufactured by the Berna Biotech Ltd. The vaccine strain is grown in fermentors under controlled… Continue Reading


VIAGRA, an oral therapy for erectile dysfunction, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Sildenafil citrate is designated chemically as 1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1 H -pyrazolo[4,3- d ]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine citrate and has the… Continue Reading


Valproic acid is a carboxylic acid designated as 2-propylpentanoic acid. It is also known as dipropylacetic acid. Valproic acid has the following structure: Valproic acid (pKa 4.8) has a molecular weight of 144 and occurs as a colorless liquid with… Continue Reading

Valacyclovir Hydrochloride

Valacyclovir hydrochloride is the hydrochloride salt of the L-valyl ester of the antiviral drug acyclovir. Valacyclovir hydrochloride tablets are for oral administration. Each tablet contains valacyclovir hydrochloride equivalent to 500 mg or 1 gram valacyclovir and the inactive ingredients carnauba… Continue Reading


VYTORIN contains ezetimibe, a selective inhibitor of intestinal cholesterol and related phytosterol absorption, and simvastatin, an HMG-CoA reductase inhibitor. The chemical name of ezetimibe is 1-(4-fluorophenyl)-3(R)-[3-(4-fluorophenyl)-3(S)-hydroxypropyl]-4(S)-(4-hydroxyphenyl)-2-azetidinone. The empirical formula is CHFNO and its molecular weight is 409.4. Ezetimibe is a… Continue Reading


VANOS (fluocinonide) Cream, 0.1% contains fluocinonide, a synthetic corticosteroid for topical dermatologic use. The corticosteroids constitute a class of primarily synthetic steroids used topically as anti-inflammatory and antipruritic agents. Fluocinonide has the chemical name 6 alpha, 9 alpha-difluoro-11 beta, 21-dihydroxy-16… Continue Reading