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Zyrtec is a widely available medication that can work quickly. ... Dr. Brooks says you’ll want to be careful about using other medications that can cause drowsiness at the same time. Claritin.
Fexofenadine, sold under the brand name Allegra among others, [10] is an antihistamine pharmaceutical drug used in the treatment of allergy symptoms, such as hay fever and urticaria. [ 11 ] Therapeutically, fexofenadine is a selective peripheral H 1 blocker .
Loratadine, sold under the brand name Claritin among others, is a medication used to treat allergies. [5] This includes allergic rhinitis (hay fever) and hives . [ 5 ] It is also available in drug combinations such as loratadine/pseudoephedrine , in which it is combined with pseudoephedrine , a nasal decongestant . [ 5 ]
H 1-antihistamines work by binding to histamine H 1 receptors in mast cells, smooth muscle, and endothelium in the body as well as in the tuberomammillary nucleus in the brain. Antihistamines that target the histamine H 1-receptor are used to treat allergic reactions in the nose (e.g., itching, runny nose, and sneezing).
Allegra is also non-drowsy, but some might find Zyrtec and Claritin to be more effective. All three offer 24-hour relief. “My favorites, in order of preference, are Allegra, Xysal, Zyrtec and ...
Thanks to the advertising push, first Claritin, then Zyrtec and Allegra became some of the most frequently prescribed medications in America. These antihistamines represented a meaningful improvement for allergy suffers. The same could not be said for other drugs that manufacturers began promoting with multimillion-dollar campaigns.
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