Statement from Pfizer Chairman and CEO Albert Bourla on Testing Positive for COVID-19
Pfizer
AUGUST 15, 2022
In preclinical studies, nirmatrelvir did not demonstrate evidence of mutagenic DNA interactions. Contraception : Use of ritonavir may reduce the efficacy of combined hormonal contraceptives. Nirmatrelvir is designed to inhibit viral replication at a stage known as proteolysis, which occurs before viral RNA replication.
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