Cetirizine and Pseudoephedrine (Systemic)
Brand Names : Zyrtec-D 12 hour
- Antihistaminic, H1
Cetirizine and pseudoephedrine(se-TEER-a-zeen and su-do-a-FED-rin)
is a combination of an
antihistamine and a decongestant used to treat the symptoms of seasonal or
yearly allergies. Antihistamines work by preventing the effects of a substance
called histamine, which is produced by the body. Histamine can cause itching,
sneezing, runny nose, and watery eyes. Decongestants produce a narrowing of
blood vessels. This leads to clearing of nasal congestion, but it may also
cause an increase in blood pressure in patients who have high blood pressure.
This medicine is available only with your doctor's prescription, in the following
Extended-release tablets (U.S.)
Some commonly used brand names are:
In the U.S. -
† Not commercially available in Canada.