Medically reviewed by Jurairat J. Molina, MD Key Takeaways Singulair helps with allergies by blocking chemicals that cause swelling and mucus.The FDA warns that Singulair may cause mood or behavior ...

WARNING: If you experience behaviour and mood-related changes including suicidal thoughts and actions while taking MONTELUKAST VIATRIS (see "Behavioural and mood related changes under Side Effects"), ...

Singulair binds to brain receptors affecting psychiatric functions Merck spinoff Organon confident in Singulair's safety profile FDA has no plan to update drug label based on new data Nov 22 (Reuters) ...

In 1998 an asthma and allergy drug called montelukast hit the U.S. market under the name Singulair. In the years that followed, commercials filled with flowers and cats proclaimed that it was “a ...