Contraindications Use of<unk>  with the following medicines is contraindicated, as they lead to reduced blood levels of<unk>  and in turn reduce the effectiveness of<unk> : * carbamazepine, oxcarbazepine, phenobarbital, phenytoin * rifampicin, rifapentine * omeprazole, esomeprazole, lansoprazole, pantoprazole, rabeprazole * systemic dexamethasone (more than a single dose) * St John's wort
Emtricitabine/rilpivirine/tenofovir
Lamivudine/tenofovir
Doravirine/lamivudine/tenofovir
Abacavir/lamivudine/zidovudine
Bictegravir/emtricitabine/tenofovir alafenamide
Abacavir/lamivudine
Lamivudine/nevirapine/zidovudine
Dolutegravir/lamivudine/tenofovir