Bicillin LA (generic: penicillin G benzathine) is a prescription medication used to treat bacteria that cause infections of the upper airways, heart valves, joints, skin, brain, and the genital areas. Bicillin LA belongs to a group of drugs called penicillin antibiotics, which help stop the growth of bacteria.

This medication is available in an injectable form to be given directly into a muscle (IM) by a healthcare professional.

Common side effects of Bicillin LA include an allergic reaction, pain at the site of injection, and upset stomach.