Loestrin« 24 Fe (norethindrone acetate and ethinyl estradiol) provides a dosage regimen consisting of 24 white progestogen-estrogen contraceptive tablets and 4 brown ferrous fumarate (placebo) tablets.

Norepinephrine (sometimes referred to as l-arterenol/Levarterenol or l-norepinephrine) is a sympathomimetic amine which differs from epinephrine by the absence of a methyl group on the nitrogen atom.

Nitroglycerin is 1,2,3-propanetriol trinitrate, an organic nitrate whose structural formula is:

Each yellow Nor-QD (norethindrone) « tablet provides a continuous oral contraceptive regimen of 0.35 mg norethindrone daily, and the inactive ingredients include D&C Yellow No. 10, FD&C Yellow No. 6, lactose, magnesium stearate, povidone, and starch.

NUEDEXTA (dextromethorphan hydrobromide and quinidine sulfate capsules) is an oral formulation of dextromethorphan hydrobromide USP and quinidine sulfate USP in a fixed dose combination.

Furadantin (nitrofurantoin), a synthetic chemical, is a stable, yellow, crystalline compound. Furadantin (nitrofurantoin oral suspension) is an antibacterial agent for specific urinary tract infections. Furadantin (nitrofurantoin oral suspension) is available in 25mg/5mL liquid suspension for oral administration.

FEMCON« Fe (norethindrone and ethinyl estradiol tablets) provides a regimen for oral contraception derived from 21 white tablets composed of norethindrone and ethinyl estradiol followed by 7 brown ferrous fumarate (placebo) tablets. The chemical name for norethindrone is 17-hydroxy-19-nor-17a-pregn-4-en-20-yn-3-one and for ethinyl estradiol the chemical name is 19-nor-17a-pregna-1,3,5(10)-trien-20-yne-3,17-diol. The structural formulas are:

Nutropin AQ« [somatropin (rDNA origin) injection] is a human growth hormone (hGH) produced by recombinant DNA technology. Nutropin AQ (somatropin rdna origin) has 191 amino acid residues and a molecular weight of 22,125 daltons. The amino acid sequence of the product is identical to that of pituitary-derived human growth hormone. The protein is synthesized by a specific laboratory strain of E. coli as a precursor consisting of the rhGH molecule preceded by the secretion signal from an E. coli protein. This precursor is directed to the plasma membrane of the cell. The signal sequence is removed and the native protein is secreted into the periplasm so that the protein is folded appropriately as it is synthesized.

Alinia (nitazoxanide) Tablets and Alinia (nitazoxanide) for Oral Suspension contain the active ingredient, nitazoxanide, a synthetic antiprotozoal agent for oral administration. Nitazoxanide is a light yellow crystalline powder. It is poorly soluble in ethanol and practically insoluble in water. Chemically, nitazoxanide is 2-acetyloxy-N-(5-nitro-2-thiazolyl)benzamide. The molecular formula is C12H9N3O5S and the molecular weight is 307.3. The structural formula is:

NovoLog« Mix 50/50 (50% insulin aspart protamine suspension and 50% insulin aspart injection) (50% insulin aspart protamine suspension and 50% insulin aspart injection, [rDNA origin]) is an insulin analog suspension containing 50% insulin aspart protamine crystals and 50% soluble insulin aspart. NovoLog« Mix 50/50 is a blood glucose-lowering agent with a rapid onset and an intermediate duration of action. Insulin aspart is homologous with regular human insulin with the exception of a single substitution of the amino acid proline by aspartic acid in position B28, and is produced by recombinant DNA technology utilizing Saccharomyces cerevisiae (baker's yeast) as the on organism. Insulin aspart (NovoLog« ) has the empirical formula C256H381N65O79S6 and a molecular weight of 5825.8 Da.