Popular allergy medications linked to severe withdrawal symptoms, FDA warns
Long-term users of Zyrtec and Xyzal may experience widespread itching that requires medical intervention
Two common allergy medications could cause a severe reaction in some people who stop using it, the FDA warned. (iStock)
Patients who stop taking the drugs after long-term use may experience "rare but severe itching," a condition called pruritus. (iStock)
Cetirizine and levocetirizine are antihistamines that are approved to treat seasonal allergies in adults and children 2 and up, according to the FDA. (iStock)
"Individuals planning on long-term use of cetirizine or levocetirizine, especially for more than a few months, should discuss the benefits and risks with your health care professional, who can provide advice based on your personal needs," the FDA stated. (iStock)