Medicare covers Paxlovid at no cost to you if you meet the conditions
Medicare Part B covers Paxlovid (nirmatrelvir/ritonavir) for people 65 and older or those with weakened immune systems who test positive for COVID-19. You pay nothing out of pocket for the medication itself — no copay, no coinsurance, no deductible. The coverage applies whether you get Paxlovid from a pharmacy or through a telehealth visit.
The catch is timing: you must start Paxlovid within five days of your first COVID-19 symptom. After five days, the medication is far less effective and Medicare will not cover it. This is why knowing your symptom start date and acting quickly matters.
If you have both Medicare Part B and a Medigap or Medicare Advantage plan, your primary coverage comes from Medicare Part B. Your secondary plan may cover additional costs, but there are typically no additional costs to cover since Medicare pays the full amount.
Key Takeaways
- Medicare Part B covers the full cost of Paxlovid with no copay or deductible if you start it within five days of your first COVID-19 symptom.
- You must have a positive COVID-19 test result and meet risk criteria (age 65 or older, or certain medical conditions that weaken immunity) to receive coverage.
- Paxlovid is available through pharmacies, urgent care clinics, and telehealth providers, and Medicare covers it in all settings.
- If you miss the five-day window, Medicare will not cover Paxlovid because it is no longer medically useful at that point.
Who qualifies for Medicare coverage of Paxlovid
You may have access to if you are 65 or older and have tested positive for COVID-19. You do not need to have symptoms — a positive test alone is enough. Medicare Part B automatically covers you in this age group.
If you are under 65, you may still may have access to if you have a condition that weakens your immune system. These include HIV infection, organ transplant, active cancer treatment, or certain medications that suppress immunity. You will need documentation of your condition when you pick up the medication or during a telehealth visit.
You must have a positive COVID-19 test result — either a PCR test or an at-home rapid test. A negative test or symptoms alone do not may have access to you. Keep your test result or documentation handy when you contact a provider.
How to get Paxlovid under Medicare
The fastest route is usually a telehealth visit. Many telehealth providers now offer same-day appointments for COVID-19 treatment. You take your test (or use a recent positive result), describe your symptoms, and the provider sends the prescription to a pharmacy. The entire process can take a few hours. Search for "telehealth COVID-19 treatment" or ask your primary care doctor for a referral.
You can also visit an urgent care clinic or your primary care doctor's office if you can get an appointment within the five-day window. Bring your positive test result and a list of any medications you take, since Paxlovid interacts with some common drugs.
Once you have a prescription, take it to any pharmacy — CVS, Walgreens, your local independent pharmacy, or a mail-order pharmacy. Tell the pharmacist you have Medicare Part B. They will bill Medicare directly. You should not pay anything at the counter.
Drug interactions and who should not take Paxlovid
Paxlovid interacts with many common medications, especially blood thinners, heart medications, and cholesterol drugs. If you take warfarin, certain statins, or medications for irregular heartbeat, your doctor or pharmacist may need to adjust your doses or timing while you take Paxlovid.
Tell your provider about every medication and supplement you take before starting Paxlovid — including over-the-counter drugs, vitamins, and herbal products. Some interactions are serious enough that Paxlovid may not be safe for you, and your provider will discuss alternatives.
Paxlovid is not recommended if you have severe kidney or liver disease, though your doctor can assess your individual situation. Pregnancy is not a reason to avoid it — in fact, pregnant people with COVID-19 are at higher risk of severe illness and may benefit from treatment.
What to expect after you start Paxlovid
Paxlovid comes as a five-day course of pills you take by mouth twice daily. You will take three pills in the morning and three pills in the evening. Most people tolerate it well, though some report a metallic taste in their mouth or mild nausea.
You should start feeling better within a few days, though some people improve faster than others. Even if you feel better before the five days are up, finish all the pills as prescribed — stopping early reduces the benefit.
A small number of people experience "rebound" — symptoms return a week or two after finishing Paxlovid. This is not common, but if it happens, contact your doctor. You may be able to take another course, though this is still being studied.
What happens if you cannot start Paxlovid within five days
If you miss the five-day window, Paxlovid loses its effectiveness and Medicare will not cover it. At that point, your focus shifts to managing symptoms at home: rest, fluids, fever reducers, and monitoring for signs of severe illness.
Contact your doctor if you develop shortness of breath, chest pain, confusion, or persistent high fever after day five. These can signal progression to pneumonia or other complications that need different treatment.
If you are at very high risk — for example, you are on immunosuppressive medications or have advanced cancer — ask your doctor about other treatments like monoclonal antibodies, which may work later in the illness. Medicare covers these too, but availability varies by location and they must be given in a medical setting.
Medicare Advantage plans and Paxlovid coverage
Most Medicare Advantage plans cover Paxlovid the same way Original Medicare does — at no cost to you when you meet the criteria. However, some plans may require you to use in-network providers or pharmacies, or they may require prior authorization before you fill the prescription.
Call your Medicare Advantage plan's customer service number (on the back of your card) before you start treatment if you have time. Ask whether Paxlovid requires prior authorization and which pharmacies are in-network. If you cannot reach them quickly and you are within the five-day window, go ahead and fill the prescription — plans rarely deny coverage for Paxlovid after the fact.
If your plan denies coverage, you can appeal. Contact your plan in writing within 60 days of the denial and explain that you met the medical criteria and started treatment within five days of symptom onset.
Frequently Asked Questions
Do I need a doctor's visit to get Paxlovid, or can I use telehealth?
Telehealth is fine — you do not need to see a doctor in person. Many telehealth providers specialize in COVID-19 treatment and can prescribe Paxlovid the same day. Your positive test result and description of symptoms are usually enough for the provider to assess whether treatment is right for you.
What if I take blood thinners or heart medication?
Tell your provider before you start Paxlovid. Some interactions require dose adjustments or timing changes, but most people on these medications can still take Paxlovid safely with monitoring. Your doctor or pharmacist will advise you on what to do.
If I start Paxlovid on day four of symptoms, does Medicare still cover it?
Yes. Medicare covers Paxlovid as long as you start it within five days of your first symptom. Day four is within the window. The key is knowing when your symptoms began — if you are unsure, ask your provider to help you determine the start date.
Can I get Paxlovid if I had COVID-19 before?
Yes. Having had COVID-19 in the past does not prevent you from getting Paxlovid if you test positive again. Reinfection is possible, and if it happens, you are still covered by Medicare for treatment within the five-day window.
What if my pharmacy says Paxlovid is out of stock?
Ask the pharmacy to check nearby locations or to order it for you — most can get it within 24 hours. If your local area has a shortage, your provider can help you find a pharmacy with stock or may suggest a telehealth pharmacy that ships by mail. Do not wait — the five-day window is your important date.