Discover the uses of Flagyl (Metronidazole) for bacterial and parasitic infections. Learn about dosage, side effects, and why you must not drink alcohol. Medscape - Amebiasis-specific dosing for Flagyl, Flagyl ER (metronidazole), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and. Flagyl (metronidazole) is a prescription antibiotic. It can treat bacterial and parasitic infections that affect the skin, gut, and other areas of the body. The best Flagyl dosage depends on what you need it for. Generally, adults are recommended to take 1 tablet (500 mg) by mouth 2 to 4 times a day for 7 to 10 days. Flagyl (Metronidazole) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Find patient medical information for Metronidazole (Flagyl, Likmez) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings FLAGYL 375 capsules are indicated for the treatment of T. vaginalis infection in females and males when the presence of the trichomonad has been confirmed by. Hypersensitivity - FLAGYL 375 capsules are contraindicated in patients with a prior history of hypersensitivity to metronidazole or other nitroimidazole derivatives. In patients with. Metronidazole (Flagyl) is a medication that treats infections caused by bacteria or parasites. You can take this tablet or capsule by mouth. Metronidazole belongs to the class of medicines known as antibiotics. It works by killing bacteria or preventing their growth. However, this medicine will not work for colds, flu, or other virus infections. This medicine is available only with your doctor's prescription. Flagyl (metronidazole) is an antibiotic that can help treat certain infections caused by bacteria or parasites that also cause diarrhea. It is not used to treat most cases of sudden (acute) diarrhea, such as viral “stomach flu” or mild food poisoning. To reduce the development of drug-resistant bacteria and maintain the effectiveness of FLAGYL® and other antibacterial drugs, FLAGYL® should be used only to treat or prevent infections that are.