
In 2012, a review found that some antihistamines may be problematic during pregnancy. Some antihistamines are safe for children, but it is a good idea to talk with a doctor or check the label carefully before giving antihistamines to a child. trouble breathing or other respiratory symptoms.A person should seek emergency medical attention if any of the following symptoms are present: Some people experience a severe allergic response called anaphylaxis after taking antihistamines. drowsiness, which is more likely when taking Zyrtec than Claritin.The body absorbs both antihistamines quickly, but Zyrtec seems to work faster for some people.Ī 2014 study found that both drugs were absorbed into the bloodstream within 1–2 hours of taking the medication.Įveryone reacts to medications differently, but Claritin and Zyrtec may have the following side effects: A person should only take one dose per day. Zyrtec and Claritin are effective for about 24 hours. People should avoid taking Zyrtec with alcohol or other medicines that could cause drowsiness. The labeling of Zyrtec says that a person should not take it when driving a vehicle or using machinery. They are less likely to make a person feel drowsy or otherwise affect alertness than older, first-generation antihistamines. Zyrtec and Claritin are second-generation antihistamines. Zyrtec contains cetirizine hydrochloride, also called cetirizine HCL, while Claritin contains loratadine. Zyrtec and Claritin have different active compounds. Regardless of marketing claims, little scientific evidence shows that either is more effective. They are available in various forms, including pills, chewable tablets, and syrups. Zyrtec and Claritin are brand-name medications that people can buy over the counter. They are available as pills, chewable tablets, and syrups.


Share on Pinterest People can purchase Zyrtec and Claritin without prescription.
