एमट्रिसिटाबिन, रिल्पिविरिन और टेनोफोविर और रिफापेंटिन का इंटरैक्शन

…Precautions (5.7) , Drug Interactions (7) , and Clinical Pharmacology (12.3) ]: Anticonvulsants: carbamazepine, oxcarbazepine, phenobarbital, phenytoin Antimycobacterials: rifampin, rifapentine Glucocorticoid (systemic): dexamethasone (more than a single-dose) Herbal Products: St John's wort ( Hypericum perforatum ) Proton Pump Inhibitors: e.g., dexlansoprazole,…

Antimycobacterials: rifampin rifapentine ↓ RPV Coadministration is contraindicated due to potential for loss of virologic response and development of resistance. rifabutin ↓ RPV The interaction was evaluated in a clinical study.

Coadministration of RPV and drugs that induce CYP3A may result in decreased plasma concentrations of RPV and loss of virologic response and possible resistance to RPV or to the class of NNRTIs.

Fixed-Dose Combination of Efavirenz, Emtricitabine, and Tenofovir Once-weekly coadministration of 900 mg PRIFTIN with the antiretroviral fixed-dose combination of efavirenz 600 mg, emtricitabine 200 mg and tenofovir disoproxil fumarate 300 mg in HIV-infected patients did not result in any substantial change in steady state exposures of efavirenz, emtricitabine,…