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The standard treatment for latent tuberculosis is nine months of isoniazid taken daily, or twice weekly under direct observation by a healthcare worker. Taking isoniazid and rifapentine once weekly for 12 weeks under direct observation is an alternative for patients >12 years old. Initial therapy for patients with active or suspected tuberculosis should include isoniazid, rifampin,pyrazinamide and ethambutol until susceptibility is known. In patients with drug-susceptible pulmonary tuberculosis, the continuation phase of treatment should be a combination of isoniazid and either rifampin or rifapentine, taken for 4 or 7 months depending on risk factors...
March 2012: Treatment Guidelines From the Medical Letter