Metronidazole is an antibiotic used to treat a wide range of infections caused by certain bacteria and parasites. It is effective against infections in various parts of the body including:

• Reproductive system infections such as bacterial vaginosis, pelvic inflammatory disease, and certain sexually transmitted infections like trichomoniasis

• Gastrointestinal infections including amebiasis (caused by parasites like Entamoeba histolytica) and other intestinal infections

• Skin infections and conditions such as rosacea

• Infections of the mouth, including dental abscesses and gum disease

• Infections of the blood, bones, joints, heart (endocarditis), lungs (pneumonia, empyema), brain and spinal cord (meningitis, abscesses)

• Anaerobic bacterial infections, which are caused by bacteria that do not require oxygen to survive

• It is also used for surgical prophylaxis, especially in colorectal surgeries

Metronidazole works by entering the cells of susceptible organisms and interfering with their DNA, leading to cell death. It is particularly effective against anaerobic bacteria and certain protozoa

. In summary, metronidazole treats bacterial and protozoal infections affecting the reproductive system, gastrointestinal tract, skin, mouth, blood, bones, joints, lungs, nervous system, and other body areas