Which of the following is NOT a side effect of leukotriene inhibitors?

Leukotriene inhibitors, such as montelukast, are primarily used to prevent asthma attacks and relieve allergy symptoms by blocking the action of leukotrienes, which are inflammatory chemicals in the body. The side effects associated with these medications typically include gastrointestinal disturbances, such as stomach pain and diarrhea, as well as potential respiratory issues like laryngitis. Weight gain is not commonly associated with leukotriene inhibitors.

The medications can lead to modifications in appetite or metabolism, but significant weight gain is not a recognized side effect. This is why identifying weight gain as NOT being a side effect of leukotriene inhibitors is correct. Recognizing the typical side effects helps to separate common misconceptions from accurate pharmacological information.