Pfizer Inc said on Tuesday it will allow generic manufacturers to supply its experimental antiviral COVID-19 pill to 95 low— and middle-income countries through a licensing agreement with international public health group Medicines Patent Pool (MPP).

The voluntary licensing agreement between Pfizer and the MPP will allow the United Nations-backed group to grant sub-licenses to qualified generic drug manufacturers to make their own versions of PF-07321332. Pfizer will sell the pills it manufactures under the brand name Paxlovid.

Pfizer, which also makes one of the mostly widely used COVID-19 vaccines, has said the pill cut the chance of hospitalization or death for adults at risk of severe disease by 89% in its clinical trial. The drug will be used in combination with ritonavir, an HIV drug that is already available generically.