Antimycobacterials are primarily used to treat tuberculosis. They also have other uses, such as managing hard-to-treat urinary tract infections (UTIs). These medications work by targeting and killing the bacteria that cause these infections. Antimycobacterials come in different forms, including oral pills, oral liquids, and injections. Examples include ethambutol (Myambutol), isoniazid, and cycloserine (Seromycin).