Drug Interactions With Telaprevir
Rifabutin can decrease levels of telaprevir in your bloodstream, potentially making it less effective. Telaprevir may increase blood levels of rifabutin, potentially increasing your risk for side effects. It is recommended that these medicines not be used together.
Telaprevir may increase blood levels of salmeterol, possibly increasing your risk for potentially serious side effects, including heart rhythm problems. You should not take salmeterol with telaprevir.
Taking telaprevir with trazodone could increase the level of trazodone in your bloodstream, potentially increasing your risk for side effects, such as nausea, dizziness, and low blood pressure. Your healthcare provider may need to give you a lower trazodone dose during telaprevir treatment.
Telaprevir can alter blood levels of warfarin. Your healthcare provider should monitor you more closely (by checking your INR) if you take warfarin with telaprevir.