Clindamycin is a drug used in the treatment of a wide array of bacterial infections including middle ear infections, throat infections, pelvic infections, and pneumonia, among others. The drug belongs to the lincosamide class of drugs which work by inhibiting the synthesis of essential proteins inside the bacteria.Clindamycin Hcl is an antibiotic that is used to fight bacteria in the body. The drug is used to treat a severe infection that is caused by bacteria. It is also used as a skin preparation for the treatment of acne and a cream used to treat a virginal infection. Clindamycin Hcl works by stopping the bacteria that cause the infection from multiplying. Patients are recommended to get the required prescription from a pharmacist. In case you are have used over the counter medication or taking other prescribed drugs, you should inform your doctor so that you can be given the right dosage. If you experience some side effects that are severe, you are recommended to stop using Clindamycin Hcl and seek medical attention.