Paxlovid doses are taken every 12 hours, once in the morning and once in the evening, for five days. That means a full course of treatment is 10 total doses spread across the five-day period.
What Each Dose Looks Like
Each dose is three pills taken together at the same time: two pink tablets (the active antiviral component) and one white tablet (a booster that helps the antiviral stay active in your body longer). The packaging comes on blister cards clearly labeled “Morning Dose” and “Evening Dose” to keep things simple. A full five-day course adds up to 30 pills total.
You can take Paxlovid with or without food, so there’s no need to plan meals around your doses. The main thing to keep consistent is that 12-hour spacing between morning and evening.
Why the 12-Hour Interval Matters
The 12-hour gap keeps enough of the drug circulating in your bloodstream to continuously block the virus from replicating. If doses are taken too close together, levels spike unnecessarily. If they’re spaced too far apart, the drug concentration drops low enough that the virus can start copying itself again. Sticking close to that 12-hour window gives the medication its best shot at reducing the severity and duration of your illness.
A practical approach: pick a morning time and an evening time that are roughly 12 hours apart and use those same times each day. For example, 8 a.m. and 8 p.m., or 7 a.m. and 7 p.m. Setting phone alarms for both times helps you stay on track, especially when you’re feeling sick and losing track of the day.
What to Do If You Miss a Dose
If you realize you missed a dose and it’s still well within your usual window, take it as soon as you remember. If it’s already close to the time for your next scheduled dose, skip the missed one and continue with your normal schedule. Do not double up by taking two doses at once to make up for the one you missed.
When to Start the First Dose
Paxlovid needs to be started within five days of your first COVID-19 symptoms. The sooner you begin, the better it works. The CDC recommends starting as soon as possible after symptom onset. If you’re past that five-day window, the treatment is not expected to provide the same benefit.
Adjusted Dosing for Kidney Issues
If you have moderate kidney impairment, your prescriber will adjust the dose. Instead of two antiviral tablets plus one booster tablet, you’ll take one antiviral tablet plus one booster tablet, still every 12 hours for five days. The schedule stays the same; only the number of pills per dose changes. Your pharmacist will modify the blister pack and explain the adjusted instructions before you leave with your prescription.