Sometimes it is not safe to use certain medications at the same time. Some drugs can affect your blood levels of other drugs you take, which may increase side effects or make the medications less effective.
Certain antacids, laxatives, or buffered medicines can make Biktarvy much less effective when taken at the same time. Take your dose on an empty stomach, 2 hours before you take any of these other medicines.
Many drugs can interact with bictegravir, emtricitabine, and tenofovir. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed here. Tell your doctor about all your current medicines and any medicine you start or stop using.
 Biktarvy drug interactions (more detail)
