Does Zyrtec Make You Drowsy

Does Zyrtec Make You Drowsy

Zyrtec (cetirizine) is an antihistamine used to treat allergy symptoms. While less sedating than older antihistamines, Zyrtec can still cause drowsiness in some individuals. Clinical studies indicate that approximately 14% of users experience drowsiness. It is advisable to avoid operating heavy machinery until you know how Zyrtec affects you.