Merck’s COVID-19 pill may soon be here. How well will it work?
New data have revealed uncertainty about the drug’s efficacy and who should use it
![a box labeled MERCK Molnupiravir for COVID-19 treatment for emergency use only](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/12/120221_ts_mulnopiravir_feat.jpg?fit=1030%2C580&ssl=1)
Molnupiravir, an antiviral drug made by Merck and Ridgeback Pharmaceuticals, may prevent some hospitalizations and deaths from COVID-19, but researchers say it has drawbacks that could limit its reach.
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