No Interaction Expected
Emtricitabine/Tenofovir-DF (FTC/TDF, PrEP)
Quality of Evidence:
Coadministration has not been studied but based on metabolism and clearance a clinically significant interaction is unlikely. Roflumilast is metabolized by CYP3A4 and CYP1A2 to form roflumilast N-oxide, with both roflumilast and roflumilast N-oxide having PDE4 inhibitory activity. Roflumilast N-oxide is subsequently dealkylated by CYP3A4. Emtricitabine/tenofovir-DF does not interfere with roflumilast metabolism.
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Emtricitabine/Tenofovir-DF (FTC/TDF, PrEP) by clicking