Why you should avoid some cough syrups if you think you’ve got the coronavirus

Coughing is one of the hallmark symptoms of being infected with the novel coronavirus. So it’s no surprise that many are swigging dextromethorphan, a workhorse cough suppressant, to calm those bone-rattling expulsions of germs and air. It may be doing them more harm than good, new research suggests. As part of an ambitious project to identify drugs that could be repurposed to treat COVID-19, …