Zyrtec contains cetirizine, whereas Xyzal contains levocetirizine, a mo... advertisement. ... The over-the-counter (OTC) solution is labeled only for use in children 2 years of age and older.

Zyrtec is an effective allergy medication, but there are some Zyrtec side effects to know about, like dry mouth and sleepiness. Allergists explain what to do. Search. About Women's Health; ...

The U.S. Food and Drug Administration has issued a warning about a rare but severe reaction that can happen to people who stop taking oral allergy medicines like Zyrtec or Xyzal.

Zyrtec is a brand-name over-the-counter (OTC) medication used to treat allergy symptoms. Zyrtec is not known to raise blood pressure, but it may depend on which form of the drug you take.

Insomnia. Zyrtec may cause insomnia because the medicine can block acetylcholine, an important neurotransmitter, says Dr. Parikh. Acetylcholine is involved in the initiation of REM sleep (i.e ...

As pollen peaks for the season, the U.S. Food and Drug Administration is warning that some popular allergy medications could cause a rare but severe itching side effect.. The FDA said in a safety ...