|AHFS/Drugs.com||International Drug Names|
|Biological half-life||1.5 hours|
|Chemical and physical data|
|Molar mass||348.438 g/mol|
|3D model (Jmol)|
|(what is this?)|
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.
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. It is available as an over-the-counter medicine in the UK, and is available with or without pseudoephedrine under the Benadryl brand.
Comparisons with other popular antihistamines
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. It is not to be taken by over 65s, pregnant women, or people with compromised liver or kidney function.
- SEMPREX-D - acrivastine and pseudoephedrine hydrochloride capsule U.S. National Library of Medicine, National Institutes of Health, May 2008
- "Benadryl Allergy Relief". electronic Medicines Compendium (eMC). 2014. Retrieved 4 July 2014.
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