Paxlovid is available by prescription only, and it’s meant to be taken within five days of first noticing COVID symptoms. According to Pfizer’s tests, it can prevent hospitalization or death by 88 percent in high-risk patients. The treatment, which can be prescribed to both vaccinated and unvaccinated people, consists of 30 pills taken over five days. It includes the protein inhibitor nirmatrelvir and rotinavir, which keeps that inhibitor from breaking down in your body. Side effects include an impaired sense of taste, high blood pressure, diarrhea and muscle aches.
So far, the US has ordered enough pills to treat 10 million people, the New York Times reports. The company plans to deliver enough pills to cover 65,000 Americans within a week. And after that, production is expect to ramp up, with 150,000 courses delivered in January and 150,000 in February. It also won’t be the only antiviral pill around: Merck’s competing treatment is expected to be approved soon, and it’ll likely be more readily available than Pfizer’s. Merck’s option is far less effective, though—tests show it can only prevent hospitalization or death by 30 percent. (Still, that’s better than having no treatment.)
Editor’s note: This article originally appeared on Engadget.