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Paxlovid

Nirmatrelvir/Ritonavir

What is Paxlovid used for?

This combination of nirmatrelvir and ritonavir is used to treat coronavirus disease (COVID-19) in people who have mild to moderate symptoms and have a high risk for COVID-19 complications. It helps people who have COVID-19 to stay out of the hospital. It is not for use by people who are hospitalized due to COVID-19. Nirmatrelvir is a SARS-CoV-2 main protease inhibitor. It works by preventing the growth of the virus that causes COVID-19. Ritonavir increases ("boosts") the levels of nirmatrelvir. This helps nirmatrelvir work better. This medication works by stopping the coronavirus from growing. It cannot be used to prevent COVID-19.

CHEMICAL NAME

Nirmatrelvir/Ritonavir (nir-MA-trel-vir/ri-TON-na-vir)

DRUG TYPE

Viral Infections

Paxlovid Prices

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Paxlovid Frequently Asked Questions

See also Warning section.

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.

Nirmatrelvir/ritonavir can slow down or speed up the removal of other medications from your body, which may affect how they work. Examples of affected drugs include alfuzosin, antiarrhythmics (such as amiodarone, flecainide, propafenone, quinidine), azole antifungals (such as voriconazole), certain benzodiazepines (midazolam, triazolam), certain "blood thinners" (such as rivaroxaban, warfarin), eletriptan, drugs to treat erectile dysfunction-ED or pulmonary hypertension (such as avanafil, sildenafil), ergot alkaloids (such as dihydroergotamine, ergonovine, ergotamine, methylergonovine), lurasidone, certain opioid pain medications (such as fentanyl, meperidine), pimozide, ranolazine, salmeterol, "statin" cholesterol drugs (such as simvastatin, lovastatin), among others.

Other medications can affect the removal of nirmatrelvir/ritonavir from your body, which may affect how this medication works. Examples include apalutamide, lumacaftor, certain rifamycins (such as rifampin, rifapentine), St. John's wort, drugs used to treat seizures (such as carbamazepine, phenobarbital, phenytoin), among others.

This medication may decrease the effectiveness of hormonal birth control (containing ethinyl estradiol) such as pills, patch, or ring. This could cause pregnancy. Discuss with your doctor or pharmacist if you should use reliable backup birth control methods while using this medication. Also tell your doctor if you have any new spotting or breakthrough bleeding, because these may be signs that your birth control is not working well.

Paxlovid Dosage and Form Information

Supplied As
Strength
Tablet Dose Pack
300-100 Mg
150-100 Mg