Metronidazole tablets 400 mg are a widely used antibiotic effective against a variety of bacterial and protozoal infections. They are commonly prescribed for conditions such as bacterial vaginosis, gastrointestinal infections, and certain dental infections. The medication works by inhibiting the growth of harmful microorganisms, helping the body recover from infection efficiently. Typically taken orally, Metronidazole 400 mg should be used exactly as prescribed by a healthcare professional to ensure effectiveness and reduce the risk of side effects.