Clindamycin is an antibiotic used primarily to treat various bacterial infections. It is effective against infections of the lungs, skin, blood, female reproductive organs, internal organs, and bones and joints. Specifically, it treats:

• Lower respiratory tract infections such as pneumonia, empyema, and lung abscess caused by susceptible bacteria.
• Skin and soft tissue infections caused by bacteria like Streptococcus pyogenes and Staphylococcus aureus.
• Gynecological infections including endometritis, pelvic cellulitis, and postsurgical vaginal cuff infections.
• Intra-abdominal infections such as peritonitis and abscesses.
• Septicemia (blood infections).
• Bone and joint infections, including acute osteomyelitis and chronic infections as adjunctive therapy.
• It is also used topically to treat and control severe acne

Clindamycin is often prescribed when penicillin is not suitable and is effective against susceptible anaerobic bacteria and some aerobic Gram- positive cocci. It is also used in some cases to treat infections caused by methicillin-resistant Staphylococcus aureus (MRSA)

. Additionally, clindamycin has off-label uses such as treating bacterial vaginosis, severe pelvic inflammatory disease, and as prophylaxis in surgery and dental procedures to prevent infections like endocarditis

. It is important to note that clindamycin does not treat viral infections and should not be used for meningitis because it does not adequately penetrate the cerebrospinal fluid

. In summary, clindamycin is used for a broad range of serious bacterial infections involving the respiratory tract, skin, blood, abdomen, reproductive organs, and bones, as well as for acne when applied topically.