About Cetirizine
Medically reviewed by Dr Khizer Hussain Junaidy, MD Pharmacology, Diabetologist & Bariatric Physician, on 23 Oct 2026.
What it is for
An anti-allergy medicine for sneezing, runny nose, itchy eyes and hives.
How to take it
Take it once a day, usually at night.
Common side effects
- Sleepiness, dry mouth.
Call your doctor if
- Swelling of the face or lips, or breathing difficulty.
Take care
Avoid alcohol. Do not drive if sleepy.
From our clinic: Taking it at bedtime reduces daytime sleepiness.