Volume 20 No 8 (2022)
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Pfizer's inventive Nirmatrelvir/Ritonavir (PaxlovidTM): Another arrow in the quiver against SARS-CoV-2.
Allam Harshavardhan Naidu , Kanala Somasekhar Reddy , Gumpili Sai Swetha , Tanguturi Niranjan Reddy , Akkiraju Sudhee , Bhupalam Pradeepkumar , Rayadurgam Naveen , M. Sri Ramachandra
Abstract
SARS-CoV-2 was a devastating global pandemic that swept the globe in late 2019, claiming the lives
of an estimated 4 million people. Amidst challenging times, we are remembering Martin Luther King
Jr.'s remark, "Mankind must put an end to war or war will put an end to mankind." In that sense,
scientists are repurposing drugs meticulously to curb the nCOVID-19. New antiviral drugs on the
other hand are being developed at unparallel rates. Among those Pfizer's inventive
Nirmatrelvir/Ritonavir (PaxlovidTM), which inhibits the main protease (Mpro) of SARS-CoV-2, 3CL
protease, will be another arrow in the quiver to mount resistance towards SARS-CoV-2. In patients
treated with nirmatrelvir/ritonavir within five days of symptom onset, COVID-19-related
hospitalizations and mortality were dramatically reduced. Paxlovid's high oral availability, allows it to
be used in both hospitalized and outpatient patients. In this brief review, we presented
pharmacokinetic, preclinical, and clinical evidence on Paxlovids for the treatment of moderate
nCOVID-19.
Keywords
SARS-CoV-2, Paxlovid
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