Tag: Zyrtec withdrawal

According to the FDA, the effects of Zyrtec (cetirizine) typically last around 24 hours, making it a convenient once-daily medication for most people experiencing allergy symptoms. However, the time it takes for the body to fully eliminate the drug and for its complete effects to wear off can vary, impacting the question of how long before Zyrtec wears off.

In 2022, over 60 million packages of over-the-counter cetirizine products were sold in the U.S. [1.3.1, 1.7.1]. For some long-term users, stopping these medications raises the question: **how long do antihistamine withdrawal symptoms last?**

In 2022, an estimated 26.8 million prescriptions for cetirizine (the active ingredient in Zyrtec) and similar antihistamines were dispensed in the U.S.. For many long-term users, the question of **how long does it take to wean off Zyrtec?** is critical due to potential withdrawal symptoms.