Cycloserine is an antibiotic. It prevents tuberculous bacteria from growing in your body. Cycloserine is used to treat tuberculosis (TB). Cycloserine is also sometimes used to treat urinary tract and other types of infections that have not responded to other treatments. Cycloserine may also be used for purposes other than those listed in this medication guide.
Cycloserine is a medicine available by prescription. Cycloserine treats conditions such as tuberculosis in patients when other medicines have proven inadequate in treatment. It helps stop the growth of tuberculosis bacteria in the body. Cycloserine is in a class of medicines called antibiotics or antitubercular. It may also be used to treat urinary tract infections.