With treatment, the chances of full recovery is good. The regimen must include several drugs to which the organisms are susceptible. The patient must take the medication on a regular basis. Therapy must continue for a sufficient time.
- The standard "short" course treatment for tuberculosis where the sensitivities of the organism are not known, is isoniazid, rifampicin, pyrazinamide and ethambutol for two months, then isoniazid and rifampicin alone for a further four months.
- If the organism is known to be fully sensitive, then treatment is with isoniazid, rifampicin and pyrazinamide for two months, followed by isoniazid and rifampicin for four months. Ethambutol need not be used.