ZERBAXA (ceftolozane and tazobactam) is an antibacterial combination product consisting of the cephalosporin antibacterial drug ceftolozane sulfate and the beta-lactamase inhibitor tazobactam sodium for intravenous administration. Ceftolozane sulfate is a semi-synthetic antibacterial drug of the beta-lactam class for parenteral administration.… Continue Reading


Bezlotoxumab is a human monoclonal antibody that binds to toxin B and neutralizes its effects. Bezlotoxumab is an IgG immunoglobulin with an approximate molecular weight of 148.2 kDa. ZINPLAVA (bezlotoxumab) Injection is a sterile, preservative-free, clear to moderately opalescent, colorless… Continue Reading


ZINECARD (dexrazoxane for injection), a cardioprotective agent for use in conjunction with doxorubicin, is a sterile, pyrogen-free lyophilizate intended for intravenous administration. Chemically, dexrazoxane is (S)-4,4′-(1-methyl-1,2-ethanediyl)bis-2,6-piperazinedione. The structural formula is as follows: Dexrazoxane, an intracellular chelating agent, is a derivative… Continue Reading


Lidocaine Ointment USP, 5% contains a local anesthetic agent and is administered topically. See for specific uses. Lidocaine Ointment USP, 5% contains lidocaine, which is chemically designated as acetamide, 2-(diethylamino)- -(2,6-dimethylphenyl)-, and has the following structural formula: Composition of Lidocaine… Continue Reading


ZIRGAN (ganciclovir ophthalmic gel) 0.15% contains a sterile, topical antiviral for ophthalmic use. The chemical name is 9-[[2-hydroxy-1-(hydroxymethyl)ethoxy]methyl]guanine (CAS number 82410-32-0). Ganciclovir is represented by the following structural formula: Ganciclovir has a molecular weight of 255.23, and the empirical formula… Continue Reading


ZAROXOLYN Tablets (metolazone tablets, USP) for oral administration contain 2½ or 5 mg of metolazone, USP, a diuretic/saluretic/antihypertensive drug of the quinazoline class. Metolazone has the molecular formula C H ClN S, the chemical name 7-chloro-1, 2, 3, 4-tetrahydro-2-methyl-3-(2-methylphenyl)-4-oxo-6-quinazolinesulfonamide, and… Continue Reading


Ziv-aflibercept is a recombinant fusion protein consisting of Vascular Endothelial Growth Factor (VEGF)-binding portions from the extracellular domains of human VEGF Receptors 1 and 2 fused to the Fc portion of the human IgG1. Ziv-aflibercept is produced by recombinant DNA… Continue Reading


Zarontin (ethosuximide) is an anticonvulsant succinimide, chemically designated as alpha-ethyl-alpha-methyl-succinimide, with the following structural formula: Each Zarontin capsule contains 250 mg ethosuximide, USP. Also contains: polyethylene glycol 400, NF. The capsule contains D&C yellow No. 10; FD&C red No. 3;… Continue Reading


ZORVOLEX (diclofenac) capsules are a nonsteroidal anti-inflammatory drug, available as hard gelatin capsules of 18 mg and 35 mg for oral administration. The chemical name is 2-[(2, 6-dichlorophenyl) amino] benzeneacetic acid. The molecular weight is 296.15. Its molecular formula is… Continue Reading


Azithromycin tablets, USP contain the active ingredient azithromycin, a macrolide antibacterial drug, for oral administration. Azithromycin has the chemical name (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one. Azithromycin is derived from erythromycin; however, it differs chemically from erythromycin in that a methyl-substituted nitrogen atom is incorporated… Continue Reading