Tinidazole is an antibiotic medication used to treat various infections caused by bacteria and parasites. It is particularly effective against conditions like bacterial vaginosis, trichomoniasis, and certain types of gastrointestinal infections. Tinidazole works by disrupting the DNA of the microorganisms, ultimately leading to their death. This medication is usually taken orally in the form of tablets and is often prescribed for a short duration. Common side effects may include nausea, headache, and a metallic taste in the mouth. It is important to complete the full course of treatment as directed by a healthcare provider to ensure the infection is fully cleared.