NEW YORK: The US government will buy another $1 billion worth of the COVID-19 pill made by Merck & Co Inc and partner Ridgeback Biotherapeutics, the companies said on Tuesday. The government in June agreed to buy 1.7 million courses of molnupiravir for $1.2 billion and is now exercising options to buy 1.4 million more.

That brings the total secured courses to 3.1 million and worth $2.2 billion. Merck said the government has the right to buy 2 million more courses as part of the contract.