Metronidazole is a prescription antibiotic medication prescribed for the treatment of a variety of parasitic and bacterial infections of the vagina, gynecological area, skin, intra-abdominal cavity, blood, bone, joint, nervous system, and heart. Find patient medical information for Metronidazole (Flagyl, Likmez) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings INTRODUCTION Metronidazole is one of the mainstay drugs for the treatment of anaerobic infections [1,2]. It is approved by the US Food and Drug Administration (FDA) for the treatment of anaerobic and protozoal infections. Metronidazole exerts its antimicrobial effects through the production of free radicals that are toxic to the microbe. MECHANISM OF ACTION Activity against most obligate. 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. The extended-release tablets are used to treat women with vaginal infections (bacterial vaginosis). NHS medicines information on metronidazole – what it's used for, side effects, dosage and who can take it. Metronidazole is an antibiotic used to fight bacteria in your body. Learn about side effects, interactions and indications. Description Metronidazole injection is used to treat serious bacterial infections in different areas of the body. It is also used to prevent infections in the bowels before and after surgery for some patients. Metronidazole belongs to the class of medicines known as antibiotics. It works by killing bacteria or preventing their growth. Metronidazole, sold under the brand name Flagyl and Metrogyl among others, is an antibiotic and antiprotozoal medication. [10] It is used either alone or with other antibiotics to treat pelvic inflammatory disease, endocarditis, and bacterial vaginosis. [10] Easy-to-read patient tips for metronidazole covering how it works, benefits, risks, and best practices. Metronidazole is used to treat infections of the reproductive system, gastrointestinal (GI) tract, skin, heart, bone, joint, lung, blood, nervous system, and other areas of the body. It is also used to treat certain sexually transmitted diseases (STDs). Metronidazole is also used to treat bacterial vaginosis (an infection caused by too much of certain types of harmful bacteria in the vagina.