Penicillin is the drug of choice for the treatment of syphilis and leptospirosis.
Syphilis is mainly caused by Treponema pallidum infection, and the key to treatment is to eliminate Treponema pallidum in the body. Penicillin has a strong effect on inhibiting and hindering the growth and division of Treponema pallidum and is widely used to treat this disease. It can kill bacteria at a certain concentration and reduce the risk of transmission. In addition to killing bacteria directly, penicillin can prevent and control serious complications that may develop later.