Clindamycin is a semisynthetic antibiotic effective against various infections, including skin, bone, joint, dental, respiratory, abdominal, pelvic, septicemia, and endocarditis. It works by inhibiting bacterial protein synthesis and is administered in doses varying by infection severity, typically starting at 300 mg every 12 hours. Caution is advised for patients with gastrointestinal history, and it has notable efficacy against MRSA and other resistant infections.