If you test positive for COVID-19 and have risk factors for severe illness, you can get antiviral medication by contacting your primary care provider, visiting an urgent care clinic, or using a telehealth service. The critical detail: treatment must start within five days of your first symptoms, and sooner is better. That narrow window means you should act the same day you test positive.
Who Qualifies for Treatment
COVID antivirals are approved for adults and for adolescents over 12 who weigh at least 88 pounds (40 kg). You need to have mild to moderate symptoms, meaning you’re not sick enough to be hospitalized, and you need at least one risk factor for developing severe COVID.
Risk factors that typically qualify you include:
- Age over 65, with risk climbing sharply above 75
- Being unvaccinated or not up to date on COVID boosters
- Having multiple chronic conditions such as diabetes, heart disease, obesity, chronic lung disease, or kidney disease
- Being immunocompromised or taking immunosuppressive medications like chemotherapy
Having more than one of these factors increases your risk substantially. Providers also use clinical judgment, so even if you’re unsure whether you qualify, it’s worth asking. The goal is to keep high-risk people out of the hospital, and the data supports aggressive prescribing: among adults prescribed the leading antiviral (Paxlovid) within five days of diagnosis, hospitalization rates dropped by 51% compared to those who didn’t receive treatment, according to CDC surveillance data from 2022.
The Five-Day Window
Both oral antivirals available for COVID, Paxlovid and molnupiravir (brand name Lagevrio), must be started within five days of symptom onset. Not five days from your positive test, five days from when you first felt sick. The drugs work by blocking the virus from replicating, so they’re far more effective when the virus is still in its early growth phase. Day one or two is ideal. By day six, the window has closed.
This timeline is the single biggest reason people miss out on treatment. If you develop symptoms like a sore throat, fever, body aches, or congestion, test immediately. If positive, call your provider that same day.
Where to Get a Prescription
You have several options, and the best one depends on how quickly you can be seen.
Your primary care provider is the simplest route if you can reach them quickly. Many offices handle this over the phone or through a patient portal. You describe your symptoms, confirm your positive test result, and your provider reviews your medication list for interactions before sending a prescription to your pharmacy.
Urgent care clinics and retail health clinics can also prescribe antivirals. Many pharmacies with walk-in clinics stock Paxlovid on-site, which means you can be tested, evaluated, and pick up your medication in a single visit. The federal Test to Treat locator at HealthData.gov lets you search by zip code for nearby sites that have received antiviral shipments recently.
Telehealth services are another option, particularly if you can’t easily leave home while sick. Some state health departments have partnered with telehealth platforms to offer free virtual consultations specifically for COVID treatment. Wait times can be 30 minutes or less for a phone or video visit. Availability varies by state and may change over time, so check your state health department’s website for current programs.
Medications That Can Complicate Treatment
Paxlovid is the preferred antiviral, but one of its components interacts with a long list of other drugs. It changes how your liver processes certain medications, which can raise or lower their levels in your blood to dangerous degrees. Your prescriber will review your full medication list before writing the prescription.
Of the 100 most commonly prescribed drugs in the U.S., only two have interactions severe enough to rule out Paxlovid entirely: the blood thinner rivaroxaban (Xarelto) and the inhaled asthma medication salmeterol (Serevent). But several other medications require temporary changes:
- Statins (cholesterol medications) need to be paused during the five-day Paxlovid course and for five days afterward
- Some blood thinners like apixaban (Eliquis) may need a dose reduction, while warfarin requires closer monitoring
- Clopidogrel (Plavix) should be avoided with Paxlovid within six weeks of receiving a coronary stent
If you take any of these, don’t assume you can’t be treated. In many cases your provider can temporarily adjust your other medications. Have your full medication list ready, including supplements, when you call.
When Paxlovid Isn’t an Option
If drug interactions, severe kidney disease (very low kidney function), or severe liver disease make Paxlovid unsafe, providers have alternatives. Molnupiravir works through a different mechanism and has fewer drug interactions, making it a practical backup. It’s approved for adults 18 and older with the same five-day treatment window.
For patients who can’t take either oral medication, an intravenous antiviral called remdesivir (Veklury) can be given in an outpatient infusion center. This requires three consecutive daily infusions, which is less convenient but remains an option for immunocompromised patients or those with complex medication regimens.
What Treatment Costs
COVID antivirals require a prescription, and most insurance plans cover them with standard copays. The out-of-pocket cost varies depending on your plan. Some treatment sites may charge for the visit itself if you’re being seen in person, though the medication cost is separate.
If you’re uninsured, your options are more limited than they were during the pandemic emergency period, when the federal government supplied antivirals at no cost. Check with community health centers, which often use sliding-scale fees, or ask the prescribing site directly about assistance programs. Pfizer has a patient assistance program for Paxlovid that may cover the drug cost for eligible uninsured patients.
What to Do Right Now
If you’re reading this because you just tested positive, here’s the sequence: check when your symptoms started and count the days. If you’re within the five-day window and have any risk factors for severe illness, call your doctor, visit an urgent care clinic, or connect with a telehealth service today. Have your medication list ready. If prescribed an antiviral, start taking it as soon as you pick it up. The course is five days of pills taken twice daily, and you should finish all of them even if you start feeling better.
Timing matters more than anything else with these drugs. The difference between starting on day two versus day five can be significant, and waiting until day six means the option is gone entirely.