Nirmatrelvir; Ritonavir is Used for treating mild-to-moderate COVID-19 in high-risk adults to prevent progression to severe outcomes like hospitalization or death. It was first introduced by Pfizer Inc in its drug Paxlovid (Copackaged) on May 25, 2023.

Nirmatrelvir; Ritonavir Patents

Given below is the list of patents protecting Nirmatrelvir; Ritonavir, along with the drug name that holds that patent and the company name owning that drug.

Drug Used in	Drug Patent Number	Drug Patent Title	Drug Patent Expiry	Drug Owner
Paxlovid (copackaged)	US11351149	Nitrile-containing antiviral compounds	Aug 05, 2041	Pfizer
Paxlovid (copackaged)	US11541034	Nitrile-containing antiviral compounds	Oct 31, 2041	Pfizer

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