Caution required when using ritonavir-boosted PF-07321332 in COVID-19 handling

We read with interest the news that the British government has announced agreements to provide oral antiviral drugs for SARS-CoV-2, molnupiravir (Lagevrio, Merck [Branchburg, NJ, USA]) and ritonavir in combination with PF-07321332 (Paxlovid, Pfizer [New York, NY, USA]).

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UK Department of Health and Social Care
The UK government secures groundbreaking COVID-19 antiviral drugs.