The common antitubercular drugs are Isoniazid, Rifampicin, ethambutol and Pyrizanamide. They are first line drugs used for treating tuberculosis.
In short course treatment of tuberculosis the Isoniazid, Rifampicin, pyrazinamide and ethambutol is given for 2 months followed by Isoniazid and Rifampicin alone for 4 months.
Steroids like predinisolone and dexamethasone are used in tubercular meningitis, tubercular pericarditis and tubercular peritonitis.