Acrivastine

Acrivastine

Acrivastine

Chemical compound

Acrivastine is a medication used for the treatment of allergies and hay fever. It is a second-generation H1-receptor antagonist antihistamine (like its base molecule triprolidine) and works by blocking histamine H1 receptors.[1]

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This non-sedating[verification needed] antihistamine is sold under the brand name Benadryl Allergy Relief in the United Kingdom by McNeil Laboratories. It should not be confused with Benadryl Once a Day which has cetirizine as the active ingredient and is also sold by McNeil in the UK, nor with the American Benadryl, which uses diphenhydramine as its active ingredient. It is available as an over-the-counter medicine in the UK, and is available with or without pseudoephedrine under the Benadryl brand.

In the U.S., acrivastine was the active ingredient in the Semprex brand. Semprex-D also contains the decongestant pseudoephedrine. Semprex-D was marketed in the U.S. by Actient Pharmaceuticals. Neither version of Semprex have been manufactured for sale in the US since 2008.[2]

Unlike cetirizine or loratadine, for which the standard dose is one tablet per day, a single acrivastine tablet may be taken up to three times a day.[3] It is not to be taken by people over the age of 65, pregnant women, or people with compromised liver or kidney function.

References

  1. [1]
    Brogden RN, McTavish D (June 1991). "Acrivastine. A review of its pharmacological properties and therapeutic efficacy in allergic rhinitis, urticaria and related disorders". Drugs. 41 (6): 927–40. doi:10.2165/00003495-199141060-00008. PMID 1715267.
  2. [2]
    SEMPREX-D - acrivastine and pseudoephedrine hydrochloride capsule U.S. National Library of Medicine, National Institutes of Health, May 2008
  3. [3]
    "Benadryl Allergy Relief". electronic Medicines Compendium (eMC). 2014. Archived from the original on 27 September 2012. Retrieved 4 July 2014.


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