subject: Diphtheria: Causes, Symptoms and Treatment [print this page] Penicillin and Erythromycin are the normal medicines prescribed by doctors for the treatment of the disease. Diphtheria antitoxin is used and is made to be in the Intensive care unit if the nervous system of kidneys is damaged. Complete vaccination is provided for those cured of the disease and other treatment would be provided according to the clinical status of the victim.