What is acrivastine and pseudoephedrine? Acrivastine is an antihistamine. It works against the naturally occurring chemical histamine in your body. Acrivastine prevents sneezing; itchy, watery eyes and nose; and other symptoms of allergies and hay fever. Pseudoephedrine is a decongestant. It constricts (shrinks) blood vessels (veins and arteries). This reduces the blood flow to certain areas, which decreases swelling and allows nasal and respiratory (breathing) passages to open up. ...

GoldBamboo

... ACRIVASTINE; PSEUDOEPHEDRINE (Semprex-D®) is a combination of an antihistamine and decongestant. It relieves the symptoms of allergies like hay fever (seasonal rhinitis) including nasal and sinus congestion. A generic capsule is not yet available. ...
Drug Digest - more...

Semprex-D is an antihistamine with decongestant.  This biochemistry ...
Wikipedia - [full article]

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