Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

A product that may interact with this drug is: orlistat.

Make sure your doctor is aware of all the HIV drugs you are taking. This medication may interact with other HIV medications. Your doctor may need to change your treatment or monitor you more closely if you are taking a certain combination of HIV medications. Consult your doctor or pharmacist for more details.

Other medications can affect the removal of etravirine from your body, which may affect how etravirine works. Examples include macrolide antibiotics (such as erythromycin, clarithromycin), rifamycins (such as rifabutin, rifampin, rifapentine), St. John's wort, drugs used to treat seizures (such as carbamazepine, phenobarbital, phenytoin, primidone), among others.

This medication can speed up or slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include clopidogrel, cobicistat, medications for heart rhythm (such as amiodarone, disopyramide), "blood thinners" (such as warfarin), certain "statin" cholesterol medications (atorvastatin, fluvastatin, lovastatin, simvastatin), drugs to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, tadalafil), among others.