ZYRTEC side effects

ZYRTEC^® (cetirizine HCl) is effective because it can provide the allergy symptom relief you’re looking for. Both indoors and outdoors.

ZYRTEC side effects

In ZYRTEC studies in adults and children aged 12 and older:

The most common side effects included drowsiness, tiredness, and dry mouth.

In ZYRTEC studies in children 2 to 11 years old:

The most common side effects included feeling drowsy, stomach pain, headache, and sore throat.

In ZYRTEC studies in infants aged 6 months to 23 months:

Side effects included being cranky, fussy, and not able to sleep. Other side effects included feeling tired and uncomfortable.