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Ombitasvir-Paritaprev-Ritonav

As of the last update, we have found no reported interactions between this medicine and specific foods, supplements, or other compounds. It is possible that unknown interactions exist. Taking medicines with meals, on an empty stomach, or with alcohol may influence their effects; refer to the Uses and Precautions tabs or to the manufacturers’ package information for details as this is not covered in Nutrient Interactions. If you take medication, always discuss the potential risks and benefits of adding a new supplement with your doctor or pharmacist.

Drug Interactions

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.

Some products that may interact with this drug include: atazanavir, efavirenz, products that contain ethinyl estradiol (such as combined birth control pills, patch, or ring).

If you are using hormonal birth control containing a certain type of estrogen (ethinyl estradiol), it must be stopped before starting treatment with this product. Use other reliable forms of birth control during treatment with this product and for 2 weeks after stopping treatment. Ethinyl estradiol-containing birth control may be restarted after that time. Talk to your doctor for more details.

This medication can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include certain alpha blockers (such as alfuzosin, silodosin), certain benzodiazepines (midazolam, triazolam), colchicine, ergot alkaloids (such as dihydroergotamine, ergotamine), certain heart drugs (dronedarone, ranolazine), lurasidone, pimozide, rilpivirine, salmeterol, certain drugs used to treat erectile dysfunction-ED or pulmonary hypertension (avanafil, sildenafil), certain "statin" cholesterol drugs (atorvastatin, lovastatin, simvastatin), certain drugs that weaken the immune system (such as everolimus, sirolimus, tacrolimus, temsirolimus), among others.

Other medications can affect the removal of this product from your body, which may affect how this product works. Examples include certain drugs used to treat seizures (such as carbamazepine, phenobarbital, phenytoin, primidone), apalutamide, belzutifan, cobicistat, elagolix, mitotane, rifampin, St. John's wort, thioridazine, among others.

Do not take this product with other products that contain ritonavir.