Cinamycin 300 mg is an oral antibiotic in the form of capsules containing Clindamycin, a lincosamide antibiotic. It is used to treat a wide range of serious bacterial infections, including skin infections, respiratory tract infections, bone and joint infections, pelvic infections, and intra-abdominal infections. Cinamycin works by inhibiting bacterial protein synthesis, ultimately preventing bacteria from growing and multiplying.