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Levocetirizine, sold under the brand name Xyzal, among others, is a second-generation antihistamine used for the treatment of allergic rhinitis (hay fever) and long-term hives of unclear cause. [3] It is less sedating than older antihistamines. [ 4 ]
H 1 antagonists, also called H 1 blockers, are a class of medications that block the action of histamine at the H 1 receptor, helping to relieve allergic reactions.Agents where the main therapeutic effect is mediated by negative modulation of histamine receptors are termed antihistamines; other agents may have antihistaminergic action but are not true antihistamines.
The unbound or free fraction of levocetirizine has been reported to be 8%. [7] The true volume of distribution of cetirizine is unknown but is estimated to be 0.3 to 0.45 L/kg. [ 9 ] [ 7 ] Cetirizine poorly and slowly crosses the blood–brain barrier , which is thought to be due to its chemical properties and its activity as a P-glycoprotein ...
Antihistamines are drugs which treat allergic rhinitis, common cold, influenza, and other allergies. [1] Typically, people take antihistamines as an inexpensive, generic (not patented) drug that can be bought without a prescription and provides relief from nasal congestion, sneezing, or hives caused by pollen, dust mites, or animal allergy with few side effects. [1]
From electronics to medications, here's a list of things you shouldn't leave in your car as freezing temperatures blast most of the U.S.
Most people know that GLP-1 receptor agonist medications like Ozempic and Wegovy can cause relatively minor side effects like nausea and diarrhea. But new research confirms that more serious ...