While most people have no problems with Zyrtec-D, side effects are possible. A few common side effects include nosebleed, sore throat, insomnia, and dry mouth. Serious side effects of Zyrtec-D include rapid heart rate, seizures, and hallucinations. Let your healthcare provider know if you develop any possible side effects or if something "just does not seem right."
An Introduction to Side Effects of Zyrtec-D
As with any medicine, side effects are possible with
Zyrtec-D® (
cetirizine and pseudoephedrine). However, not everyone who takes the drug will experience side effects. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or are easily treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with Zyrtec-D. Your healthcare provider can discuss a more complete list of Zyrtec-D side effects with you.)
Common Side Effects of Zyrtec-D
Zyrtec-D has been studied thoroughly in clinical trials, in which the side effects of a group of people taking the drug are documented and compared to another group not taking the medicine. As a result, it is possible to see what side effects occur, how often they appear, and how they compare to the group not taking the medicine.
In these studies, the most common side effects of Zyrtec-D included:
Other common Zyrtec-D side effects (occurring in 1 to 2 percent of people) included:
- Drowsiness
- Sore throat
- Nosebleeds
- Accidental injury
- Dizziness
- Sinus infection.
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