Ontario received its first shipment of Paxlovid last week, and Health Minister Christine Elliott had said the drug would be directed toward adults at the highest risk.
The company announced Wednesday that the first participant had received a dose. Earlier this week, competitor Pfizer began a similar study of its own reformulated shots.
A non-profit centre that works to make pediatric formulations of common medicines commercially available wants to hear from parents and community pharmacists about their experiences.
