Certain HIV treatment less effective when used with anti-TB therapy

Combination antiretroviral therapy (ART) is frequently initiated in resource-limited countries when patients are being treated for tuberculosis. Co-administration of ART and anti-tubercular therapy may be complicated by shared toxicity or adverse drug interactions, according to background information in the article. Rifampicin-based anti-tubercular therapy reduces the plasma concentrations of the antiretroviral agents efavirenz and nevirapine. The virological consequences of these interactions are not well known.

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