Flamyd 500 MG contains metronidazole, an antibiotic and antiprotozoal medicine. It effectively treats infections caused by anaerobic bacteria and certain parasites in various parts of the body, including the blood, abdomen, pelvis, brain, gums, and genital area. It works by disrupting the DNA of these microorganisms, leading to their death. Dosage varies based on the infection, and it's crucial to follow your doctor's instructions. Common side effects can include nausea, vomiting, and a metallic taste. Be sure to inform your doctor about any other medications or medical conditions you have, and avoid alcohol during treatment.