Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate has 45 known drug interactions based on U.S. FDA drug labeling data. Of these, 7 are contraindicated combinations that should be avoided entirely. 1 are classified as major interactions requiring close medical supervision. Notable interactions include combinations with Atazanavir, Atazanavir And Cobicistat, Clarithromycin. Patients taking Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.
- Total
- 45
- Contraindicated
- 7
- Major
- 1
- Moderate
- 14
Contraindicated (7)
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Atazanavir— Coadministration is not recommended. Decreases atazanavir concentrations while increasing tenofovir concentrations.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Atazanavir And Cobicistat— Coadministration is not recommended. Combined effect on atazanavir plasma concentrations uncertain.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Clarithromycin— voriconazole ↓ voriconazole ↑ efavirenz Coadministration of efavirenz, emtricitabine and tenofovir disoproxil fumarate w…
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Elbasvir— elbasvir/grazoprevir ↓ elbasvir ↓ grazoprevir Coadministration of efavirenz, emtricitabine and tenofovir disoproxil fuma…
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Grazoprevir— elbasvir/grazoprevir ↓ elbasvir ↓ grazoprevir Coadministration of efavirenz, emtricitabine and tenofovir disoproxil fuma…
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Lopinavir— ( 4 , 5.4 , 7 ) • HIV-1 protease inhibitors: Coadministration of efavirenz, emtricitabine and tenofovir disoproxil fumar…
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Voriconazole— voriconazole ↓ voriconazole ↑ efavirenz Coadministration of efavirenz, emtricitabine and tenofovir disoproxil fumarate w…
Major (1)
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Posaconazole— posaconazole ↓ posaconazole Avoid concomitant use unless the benefit outweighs the risks.
Moderate (14)
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Acyclovir— Eliminated by active tubular secretion; may increase concentrations of acyclovir and/or emtricitabine/tenofovir.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Adefovir Dipivoxil— Eliminated by active tubular secretion; may increase concentrations of adefovir and/or emtricitabine/tenofovir.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Cidofovir— Eliminated by active tubular secretion; may increase concentrations of cidofovir and/or emtricitabine/tenofovir.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Darunavir— ( 4 , 5.4 , 7 ) • HIV-1 protease inhibitors: Coadministration of efavirenz, emtricitabine and tenofovir disoproxil fumar…
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Darunavir Ethanolate And Cobicistat— Coadministration increases tenofovir concentrations. Monitor for evidence of tenofovir toxicity.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Ganciclovir— Eliminated by active tubular secretion; may increase concentrations of ganciclovir and/or emtricitabine/tenofovir.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Gentamicin— Aminoglycoside eliminated by active tubular secretion; may increase concentrations of gentamicin and/or emtricitabine/te…
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Lopinavir And Ritonavir— Coadministration increases tenofovir concentrations. Monitor for evidence of tenofovir toxicity.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Phenobarbital— Induces CYP3A activity, increasing efavirenz clearance and lowering plasma concentrations.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Rifabutin— Induces CYP3A activity, increasing efavirenz clearance and lowering plasma concentrations.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Rifampin— Induces CYP3A activity, increasing efavirenz clearance and lowering plasma concentrations.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Tenofovir— ( 4 , 5.4 , 7 ) • HIV-1 protease inhibitors: Coadministration of efavirenz, emtricitabine and tenofovir disoproxil fumar…
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Valacyclovir— Eliminated by active tubular secretion; may increase concentrations of valacyclovir and/or emtricitabine/tenofovir.
- Efavirenz, Emtricitabine And Tenofovir Disoproxil Fumarate + Valganciclovir— Eliminated by active tubular secretion; may increase concentrations of valganciclovir and/or emtricitabine/tenofovir.