No Interaction Expected
Emtricitabine/Tenofovir-DF (FTC/TDF, PrEP)
Levonorgestrel (Emergency Contraception)
Quality of Evidence:
Coadministration has not been studied but based metabolism and elimination a clinically significant interaction is unlikely. Levonorgestrel is metabolized by CYP3A4 and is glucuronidated to a minor extent.
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Emtricitabine/Tenofovir-DF (FTC/TDF, PrEP) by clicking