F.D.A. Warned of Mental Side Effects from Asthma Drug, Singulair. Few Were Told.
In early 2020, the Food and Drug Administration responded to decades of escalating concerns about a commonly prescribed drug for asthma and allergies by deploying one of its most potent tools: a stark warning on the drug’s label that it could cause aggression, agitation and even suicidal thoughts. The agency’s label, which was primarily aimed…