How does ritonavir interact with other medicines or food?

Ritonavir, when combined with any of the following medicines, could cause life-threatening effects: amiodarone, afluzosin, bepridil,ergotamine, flecainide, lovastatin, simvastatin, methylergonovine, midazolam, triazolam, pimozide, propafenone, quinidine, sildenafil, St. John's Wort, triazolam, voriconazole, dihydroergotamine and ergonovine.
The following medications may also interact negatively with ritonavir: ADHD medications, antibiotics, antifungals, heart or blood pressure medications, antidepressants and other mental disorder medications, steroid medications, erectile dysfunction drugs, diabetes medications, including insulin, sedatives, seizure medications, pain medications, cholesterol-lowering medications, atovaquone, quinine, dronabinol, maraviroc, simeprevir, salmeterol and theophylline. Drinking alcohol, smoking or using illegal drugs may also interfere with ritonavir. Many over-the-counter and prescription medications, and even herbal supplements and vitamins, can interact poorly with ritonavir, so make sure to tell your doctor about your entire medication history before taking this drug.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.