Merck adds new warnings on nervous system side effects
(NEWSER) - The FDA has opened an investigation of anecdotal links between the popular asthma and allergy drug Singulair and suicidal thoughts. In the past year, manufacturer Merck has added warnings of several possible side effects of the pill related to the nervous system, including anxiety, depression, tremors, and suicidal thinking. The FDA says its review of the drug, which had sales of more than $4.3 billion last year, may take up to nine months. More»
