Britain has become the first country to approve an antiviral COVID-19 treatment that can be taken as a pill at home. The UK national medicines regulator, the MHRA, announced on Nov. 4 that the antiviral Lagevrio (molnupiravir) had been authorised to treat mild to moderate COVID-19—in those with other risk factors, such as obesity, diabetes, or those over 60 years old. “Today is a historic day for our country, as the UK is now the first country in the world to approve an antiviral that can be taken at home for COVID-19,” said UK health secretary Sajid Javid in a statement. “We are working at pace across the government and with the NHS to set out plans to deploy molnupiravir to patients through a national study as soon as possible. “This antiviral will be an excellent addition to our armoury against COVID-19.” The drug, from Ridgeback Biotherapeutics and Merck Sharp …