bacterial infections that penicillin treats
9 drugs 9 penicillin antibiotics are used to treat treat urinary tract infections upper respiratory tract infections lower respiratory infections skin infections bacterial infections gastrointestinal infections meningitis and pneumoniathey work by killing the bacteria that is causing the infection2 cephalosporin antibiotics are used to treat ear infections lower respiratory infections upper respiratory infections urinary tract infections skin infections pneumonia and sinus infections they work by slowing the growth of the bacteria that is causing the infection