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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 .
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.
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]
Misuse of the drug has been reported in one case at massive doses of 3,000 to 4,500 mg (100–150 × 30-mg tablets) per day, with the doses gradually increased over time by this individual. [ 1 ] [ 66 ] No fatalities due to pseudoephedrine misuse have been reported as of 2021. [ 17 ]
Terfenadine acts as a peripherally-selective antihistamine, or antagonist of the histamine H 1 receptor. [3] It is a prodrug, generally completely metabolized to the active form fexofenadine in the liver by the enzyme cytochrome P450 3A4.
Bilastine is an antihistamine medication used to treat hives (), allergic rhinitis and itchy inflamed eyes (allergic conjunctivitis) caused by an allergy. [6] It is a second-generation antihistamine and takes effect by selectively inhibiting the histamine H 1 receptor, preventing these allergic reactions. [7]
The company's first international move took it to Russia in 1992. There, Dr. Reddy's formed a joint venture with the country's biggest pharmaceuticals producer, Biomed.They pulled out in 1995 amid accusations of scandal, involving "a significant material loss due to the activities of Moscow's branch of Reddy's Labs with the help of Biomed's chief executive". [8]
In the United States, cenobamate is indicated for the treatment of partial-onset seizures in adults. [3]In the European Union, it is indicated for the adjunctive treatment of focal-onset seizures with or without secondary generalization in adults with epilepsy who have not been adequately controlled despite a history of treatment with at least two anti-epileptic medications.