Flagyl 500 mg Injection (Metronidazole) — Intravenous Antibiotic & Antiprotozoal Therapy Flagyl 500 mg Injection contains metronidazole, a potent antibiotic and antiprotozoal agent used for treating a wide range of serious infections caused by anaerobic bacteria and protozoa. This injectable formulation (500 mg in 100 ml) is designed for intravenous use in hospital or clinical settings, providing fast and effective therapy when oral medications are inadequate or inappropriate. Commonly prescribed by physicians to manage intra-abdominal, gynecologic, dental, skin/soft-tissue, and gastrointestinal infections, Flagyl interrupts DNA synthesis in harmful organisms, stopping their spread and promoting recovery. Due to the potential for serious interactions — especially with alcohol — and possible side effects, Flagyl Injection must be administered under medical supervision with appropriate monitoring.