Dalacin-C 300 mg Capsules contains Clindamycin 300 mg which is used in the treatment of bacterial infections. It is used in infections of the skin such as acne (Pimples) abdomen bone skin heart and soft tissues. It also used in post-operative infections. It is an antibiotic that works by preventing synthesis of essential proteins required by bacteria to carry out vital functions. Thus it stops the bacteria from growing and prevents the infection from spreading.