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Fexofenadine is used for relief from physical symptoms associated with seasonal allergic rhinitis and for treatment of hives, including chronic urticaria. [12] It does not cure, but rather prevents the aggravation of allergic rhinitis and chronic idiopathic urticaria, and reduces the severity of the symptoms associated with those conditions, providing relief from repeated sneezing, runny nose ...
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.
Occasionally, this insomnia may be worse than the insomnia the drug was intended to treat. [1] Common medicines known to cause this problem are eszopiclone , zolpidem , and anxiolytics such as benzodiazepines and which are prescribed to people having difficulties falling or staying asleep.
There is a case report of temporary depressive symptoms upon discontinuation and withdrawal from pseudoephedrine. [18] [61] The withdrawal symptoms included worsened mood and sadness, profoundly decreased energy, a worsened view of oneself, decreased concentration, psychomotor retardation, increased appetite, and increased need for sleep. [18] [61]
It contains fexofenadine, as the hydrochloride, an antihistamine; and pseudoephedrine, as the hydrochloride, a nasal decongestant. [ 2 ] In 2021, it was the 279th most commonly prescribed medication in the United States, with more than 800,000 prescriptions.
One year later, spending on television drug ads had more than doubled, from $310 million to $664 million. A major early beneficiary was a new generation of antihistamines that did not make people drowsy. Thanks to the advertising push, first Claritin, then Zyrtec and Allegra became some of the most frequently prescribed medications in America.