Answer
Close monitoring of anticoagulation is needed when nevirapine hemihydrate (Viramune) is taken with warfarin because their complex interaction can either increase or decrease coagulation time.
Sources for this answer
- Viramune 50mg/5ml oral SuspensionBoehringer Ingelheim Limited · emc · SmPC §4.5 Interaction with other medicinal products · Version 42Document updated
Sources checked