To get a COVID antiviral like Paxlovid, you need a positive test, symptoms that started within the last five days, and a prescription from a healthcare provider or pharmacist. The process can move quickly if you know where to go, and several options exist even if you don’t have a primary care doctor or insurance.
Who Qualifies for COVID Antivirals
COVID antivirals are approved for adults and for adolescents over 12 who weigh at least 88 pounds (40 kg). To qualify, you need at least one risk factor for developing severe COVID. Your prescriber makes that call based on your medical history, but the CDC’s list of risk factors is broad. It includes conditions like obesity, diabetes, heart disease, chronic lung disease, kidney disease, being immunocompromised, and being over 50. Pregnancy also qualifies. In practice, most adults have at least one qualifying factor.
You also need a confirmed positive COVID test and symptoms that started no more than five days ago. Both Paxlovid and Lagevrio (molnupiravir) must be started within that five-day window to be effective, and sooner is better. This is why speed matters: if you test positive on day one, don’t wait to feel worse before seeking treatment.
Four Ways to Get a Prescription
Your Primary Care Doctor
Calling your regular doctor’s office is the most straightforward route. Many offices can handle this over the phone or through their patient portal once you report a positive test. They already have your medical history, which makes the drug interaction check faster.
Telehealth Visits
If you can’t get a same-day appointment with your doctor, telehealth is often the fastest option. CVS MinuteClinic, for example, offers virtual care visits specifically for COVID treatment so you can stay isolated at home. Other telehealth platforms and urgent care networks offer similar services. A virtual provider can evaluate your symptoms, confirm eligibility, and send a prescription to your pharmacy electronically.
Pharmacies and Walk-In Clinics
Some pharmacists are authorized to prescribe Paxlovid directly. You’ll need to provide your medical history, current medications, and recent lab work (particularly kidney function results) since pharmacists need to screen for drug interactions and dosing adjustments. If you don’t have recent labs, the pharmacist may refer you to a physician instead. Walk-in clinics at retail pharmacies can also prescribe during an in-person visit.
Community Health Centers
If you don’t have a regular doctor or insurance, local pharmacies, community health centers, and health departments can connect you with testing and treatment. The HHS Treatment Locator at treatments.hhs.gov lets you search for nearby pharmacies, clinics, and other locations that stock COVID antivirals. You can also call 1-800-232-0233 for help finding a location.
Paxlovid vs. Lagevrio
Paxlovid is the preferred option. Head-to-head research published in The Lancet Infectious Diseases found that Paxlovid has substantially greater antiviral activity than Lagevrio, clearing the virus from the body faster. Both drugs are taken orally twice a day for five days, but Paxlovid is the first-line choice for most patients.
Lagevrio works through a different mechanism, introducing errors into the virus’s genetic code to stop it from replicating. This raises a concern: patients treated with Lagevrio showed more viral mutations in follow-up samples than those treated with Paxlovid or no treatment at all. For this reason, Lagevrio is typically reserved for situations where Paxlovid can’t be used.
Drug Interactions Are the Main Hurdle
The biggest practical barrier to getting Paxlovid isn’t eligibility. It’s drug interactions. Paxlovid contains a component called ritonavir that dramatically affects how your liver processes other medications. This can cause dangerously high blood levels of certain drugs you may already be taking.
The affected medication categories are wide-ranging: certain heart rhythm drugs, blood thinners, cholesterol medications, seizure drugs, sedatives, and some herbal supplements like St. John’s Wort. Before prescribing, your provider or pharmacist will review every medication you take. In some cases, a medication can be temporarily paused for the five-day treatment course. In others, Paxlovid won’t be safe and your provider may recommend Lagevrio or another approach instead.
Come prepared with a complete list of everything you take, including over-the-counter drugs and supplements. This is the single most useful thing you can do to speed up the prescribing process.
What Treatment Costs
Paxlovid now carries a retail price that can be significant without coverage, but several assistance programs exist. Medicare patients who are underinsured or lack prescription coverage may access Paxlovid at no cost through the U.S. Government Patient Assistance Program (USG PAP). Medicaid, Tricare, and Veterans Affairs patients with high copays may also be eligible for the same program.
If you have commercial insurance, your plan likely covers Paxlovid with a standard copay. If cost is a concern, ask your pharmacist about assistance options before assuming you can’t afford it.
What to Expect After Starting Treatment
The course is five days of pills taken twice daily. Most people notice symptom improvement within the first few days. The most commonly reported side effects are an altered or metallic taste in the mouth and diarrhea.
Some people experience what’s called COVID rebound, where symptoms or a positive test return after finishing treatment. This has gotten a lot of attention, but the actual numbers are reassuring. A large observational study found rebound rates of about 6.6% for Paxlovid, 4.8% for Lagevrio, and 4.5% for people who received no treatment at all. The difference is small, and some studies have found slightly higher rebound rates (10 to 14%) in treated patients. Either way, the CDC and NIH are clear that the possibility of rebound should not discourage treatment when someone qualifies, because the medications prevent hospitalization and death.
If you do experience rebound, it typically resolves on its own without a second course of treatment. You should isolate again while symptoms return.
Move Fast After a Positive Test
The five-day treatment window is firm, and the logistics of getting a prescription, filling it, and starting treatment can eat into that time. If you test positive at home and have any risk factors, contact a provider that same day. Have your medication list ready. Use telehealth if your doctor’s office can’t see you quickly. The earlier you start treatment within that window, the more effective it is.