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CetirizineOver the counter
Pronounced se-TEER-i-zeen
Brand names: Zyrtec
Type: Antihistamine · All Allergy Medicines
What Cetirizine is used for
- Seasonal and year-round allergies
- Hives
◆ Kidney note
Dose is lowered when kidney function is significantly reduced.
Common side effects
- Mild drowsiness
- Dry mouth
- Headache
- Tiredness
Important cautions
- Can still cause some drowsiness, especially combined with alcohol or sedating medicines
How it comes
Tablets, chewable tablets, liquid. This guide lists forms only — it never lists strengths or doses.
Related medicines — Allergy Medicines
Please note: This page is a patient-education summary, not medical advice, and it deliberately contains no doses. Medicines affect everyone differently — always follow your own prescription and talk to your doctor or pharmacist before starting, stopping or changing any medicine.