Safety, efficacy and pharmacokinetics of ritonavir 400mg/saquinavir 400mg twice daily plus rifampicin combined therapy in HIV patients with tuberculosis.

Objective: To assess the drug concentrations, efficacy and safety of concomitant use of rifampicin and regimens containing ritonavir/saquinavir (400mg/400mg twice daily) in tuberculosis-HIV treatment-naive patients.