METROGEL contains metronidazole, USP. Chemically, metronidazole is 2-methyl-5-nitro-1 H-imidazole-1-ethanol. The molecular formula for metronidazole is C₆H₉N₃O₃. It has the following structural formula:

Metronidazole Injection, USP RTU®, is a parenteral dosage form of the synthetic antibacterial agent 1-(??-hydroxyethyl)-2-methyl-5-nitroimidazole.

Flagyl (metronidazole) is an oral synthetic antiprotozoal and antibacterial agent, l-?-hydroxyethyl)-2-methyl-5-nitroimidazole, which has the following structural formula:

METROGEL® Topical Gel contains metronidazole, USP, at a concentration of 7.5 mg per gram (0.75%) in a gel consisting of carbomer 940, edetate disodium, methylparaben, propylene glycol, propyl-paraben, purified water, and sodium hydroxide. Metronidazole is classified therapeutically as an antiprotozoal and antibacterial agent. Chemically, metronidazole is named 2-methyl-5-nitro-1H-imidazole-1-ethanol and has the following structure:

NORITATE™ (metronidazole cream) Cream, 1%, contains metronidazole, USP. Chemically, metronidazole is 2-methyl-5-nitro-1H-imidazole-1-ethanol.

Metronidazole (metronidazole (metronidazole injection) injection) Injection USP, sterile, is a parenteral dosage form of a synthetic antibacterial agent, 2-methyl-5-nitroimidazole-1-ethanol:

METROCREAM® Topical Cream contains metronidazole, USP, at a concentration of 7.5 mg per gram (0.75%) in an emollient cream consisting of benzyl alcohol, emulsifying wax, glycerin, isopropyl palmitate, purified water, sorbitol solution, lactic acid and/or sodium hydroxide to adjust pH. Metronidazole is a member of the imidazole class of antibacterial agents and is classified therapeutically as an antiprotozoal and anti-bacterial agent. Chemically, metronidazole is 2-methyl-5-nitro-1H-imidazole-1-ethanol. The molecular formula is C₆H₉N₃O₃ and molecular weight is 171.16. Metronidazole is represented by the following structural formula:

VANDAZOLE (metronidazole vaginal gel, 0.75%) is the vaginal dosage form of the nitroimidazole antimicrobial metronidazole at a concentration of 0.75%. Chemically, metronidazole is a 2-methyl-5-nitroimidazole-1-ethanol.

MetroLotion® (metronidazole lotion) Topical Lotion contains metronidazole, USP, at a concentration of 7.5 mg per gram (0.75% w/w) in a lotion consisting of benzyl alcohol, carbomer 941, cyclomethicone, glycerin, glyceryl stearate, light mineral oil, PEG-100 stearate, polyethylene glycol 400, potassium sorbate, purified water, steareth-21, stearyl alcohol, and sodium hydroxide and/or lactic acid to adjust pH.

METROGEL-VAGINAL (metronidazole) is the intravaginal dosage form of the synthetic antibacterial agent, metronidazole, USP at a concentration of 0.75%. Metronidazole is a member of the imidazole class of antibacterial agents and is classified therapeutically as an antiprotozoal and antibacterial agent. Chemically, metronidazole is a 2-methyl-5-nitroimidazole-1-ethanol. It has a chemical formula of C₆H₉N₃O₃, a molecular weight of 171.16, and has the following structure: