What Are The Side Effects Of Antihistamines?

Issues With Appetite

Some antihistamines can cause loss of appetite, particularly if they also cause an individual to experience nausea and vomiting, a gastrointestinal upset can lead individuals to eat less. However, it's more common for antihistamines to lead to an increase in appetite. In fact, the antihistamine cyproheptadine has been used to help underweight patients gain weight. Researchers have several theories for why this phenomenon occurs. The main one is histamines are integral to the regulation of appetite. Histamines let individuals know when they're full and keep them from getting hungry for certain amounts of time. An antihistamine can counteract the effects of histamines, which can make individuals feel hungrier than usual. Researchers have not yet determined which antihistamines are least likely to cause an increase in appetite, and thus, more studies need to be done regarding the effect different antihistamines have on appetite and weight gain or loss.

Reveal additional side effects linked to antihistamines now.