Answer
The combination can cause dangerous slowing of the heartbeat. It should generally be avoided unless alternatives are unsuitable, with specialist cardiac monitoring if used.
Sources for this answer
- Sovaldi 400 mg film-coated tablets — Current selected SmPCemc · Summary of Product Characteristics
- UK GovernmentUK Government · Reputable Web
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.