Nitroglycerin is 1,2,3-propanetriol trinitrate, an organic nitrate whose structural formula is: and whose molecular weight is 227.09. The organic nitrates are vasodilators, active on both arteries and veins. NITRO-BID for topical use contains lactose and 2% nitroglycerin in a base… Continue Reading

Nigrospora sphaerica

Allergenic extracts are sterile solutions consisting of the extractable components from various biological sources including pollens, inhalants, molds, animal epidermals and insects. Aqueous extracts are prepared using cocas fluid containing NaCl 0.5%, NaHCO3 0.0275%, WFI, preservative 0.4% Phenol. Glycerinated allergenic… Continue Reading

Nitroglycerin Transdermal Delivery System

Nitroglycerin is a 1,2,3-propanetriol trinitrate, an organic nitrate whose structural formula is and whose molecular weight is 227.09. The organic nitrates are vasodilators, active on both arteries and veins. The Nitroglycerin Transdermal Delivery System is a unit designed to provide… Continue Reading


Emergency contraceptive tablet. Each Next Choice tablet contains 0.75 mg of a single active steroid ingredient, levonorgestrel [18,19-Dinorpregn-4-en-20-yn-3-one-13-ethyl-17-hydroxy-, (17α)-(-)-], a totally synthetic progestogen. The inactive ingredients present are colloidal silicon dioxide, corn starch, FD&C Yellow #6, magnesium stearate, povidone, and… Continue Reading

Nicardipine Hydrochloride

Nicardipine hydrochloride is a calcium ion influx inhibitor (slow channel blocker or calcium channel blocker).  Nicardipine hydrochloride injection for intravenous administration contains 2.5 mg/mL of nicardipine hydrochloride. Nicardipine hydrochloride is a dihydropyridine derivative with IUPAC (International Union of Pure and… Continue Reading


NILANDRON tablets contain nilutamide, a nonsteroidal, orally active antiandrogen having the chemical name 5,5-dimethyl-3-[4-nitro-3-(trifluoromethyl)phenyl]-2,4-imidazolidinedione with the following structural formula: Nilutamide is a microcrystalline, white to practically white powder with a molecular weight of 317.25. Its molecular formula is CHFNO. It… Continue Reading


Naropin Injection contains ropivacaine HCl which is a member of the amino amide class of local anesthetics.  Naropin Injection is a sterile, isotonic solution that contains the enantiomerically pure drug substance, sodium chloride for isotonicity and Water for Injection. Sodium… Continue Reading


Nisoldipine is an extended release tablet dosage form of the dihydropyridine calcium channel blocker. Nisoldipine is 3,5-pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-, methyl 2-methyl-propyl ester, C20H24N2O6, and has the structural formula: Nisoldipine is a yellow crystalline substance, practically insoluble in water but soluble… Continue Reading

Nefazodone hydrochloride

Nefazodone hydrochloride tablets, USP is an antidepressant for oral administration with a chemical structure unrelated to selective serotonin reuptake inhibitors, tricyclics, tetracyclics, or monoamine oxidase inhibitors (MAOI). Nefazodone hydrochloride, USP is a synthetically derived phenylpiperazine antidepressant. The chemical name for… Continue Reading


NEVANAC (nepafenac ophthalmic suspension) 0.1% is a sterile, topical, nonsteroidal anti-inflammatory (NSAID) prodrug for ophthalmic use. Each mL of NEVANAC suspension contains 1 mg of nepafenac. Nepafenac is designated chemically as 2-amino-3-benzoylbenzeneacetamide with an empirical formula of CHNO. The structural… Continue Reading