shutterstock_2026137224_flowersandtraveling
Flowersandtraveling / Shutterstock.com
28 June 2022Big PharmaMuireann Bolger

Pfizer sued over COVID-19 antiviral drug

Pfizer is facing a lawsuit centring on its COVID-19 antiviral, Paxlovid (nirmatrelvir tablets; ritonavir tablets), after Enanta Pharmaceuticals filed a complaint citing patent infringement.

Already registered?

Login to your account

To request a FREE 2-week trial subscription, please signup.
NOTE - this can take up to 48hrs to be approved.

Two Weeks Free Trial

For multi-user price options, or to check if your company has an existing subscription that we can add you to for FREE, please email Adrian Tapping at atapping@newtonmedia.co.uk


More on this story

Big Pharma
15 April 2026   The Danish pharma giant is turning to artificial intelligence as it faces patent expiry, falling shares and intensifying competition from Eli Lilly.
Big Pharma
23 March 2026   With Novo Nordisk's core semaglutide patent expired in India last week, the company that built one of the most successful drugs in pharmaceutical history is already fighting on a new front. So what comes next?
Big Pharma
19 March 2026   The Swiss generics giant secures global commercialisation rights as partnership targets multi-billion-dollar loss-of-exclusivity opportunity.