To reduce the development of drug-resistant bacteria and maintain the effectiveness of metronidazole tablets and other antibacterial drugs, metronidazole tablets should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. Metronidazole Tablets prescription and dosage information for physicians and health care professionals. Pharmacology, adverse reactions, warnings, and Metronidazole Tabletsside effects. Metronidazole is used to treat bacterial infections in different areas of the body. It is also used to treat infections caused by protozoa (eg, trichomoniasis and amebiasis) and infections caused by bacteria that do not need oxygen to survive. Metronidazole oral tablets are prescription drugs used to treat infections caused by bacteria or parasites. The immediate-release tablet comes as a generic drug and the brand-name drug Flagyl. Find patient medical information for Metronidazole (Flagyl, Likmez) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Metronidazole is an antibiotic that is used to treat a wide variety of infections. It works by stopping the growth of certain bacteria and parasites. This antibiotic treats only certain bacterial and parasitic infections. It will not work for viral infections (such as common cold, flu). To reduce the development of drug-resistant bacteria and maintain the effectiveness of metronidazole tablets and other antibacterial drugs, metronidazole tablets should be used only to. Easy-to-read patient tips for metronidazole covering how it works, benefits, risks, and best practices. Metronidazole is an antibiotic used to fight bacteria in your body. Learn about side effects, interactions and indications. To reduce the development of drug-resistant bacteria and maintain the effectiveness of metronidazole and other antibacterial drugs, metronidazole should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria.