A randomized, open-label trial was performed to study virological and intracellular interactions between stavudine and ribavirin in 30 patients coinfected with human immunodeficiency virus (HIV) and hepatitis C virus (HCV). Patients were randomized to receive either interferon and ribavirin or no treatment for HCV infection for 3 months. Intracellular peripheral blood mononuclear cells' stavudine-triphosphate (TP) concentrations were assessed. Plasma HIV RNA levels did not change significantly between baseline and month 3. There was a nonstatistically significant trend for a lower median residual concentration of intracellular stavudine-TP in the treated group, compared with the control group. The same trend was also observed for peak concentrations. Coprescription of ribavirin and stavudine has no short-term impact on plasma HIV RNA level in HIV-HCV-coinfected patients treated with stavudine as a part of their antiretroviral treatment; this coprescription can be safely used, although an in vivo interaction between ribavirin and stavudine is possible.
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Salmon‐Céron et al. (2003) studied this question.
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