OTC
Antihistamine (anti-allergy)
Cetirizine
Last reviewed April 2026
Who is this for?
What is this drug?
Cetirizine is an antihistamine that works by blocking a natural substance called histamine in your body, which is responsible for causing allergy symptoms like sneezing, itching, and runny nose.
What is it used for?
Hay feversneezingrunny or itchy nosewatery or itchy eyesskin rashes and itching (urticaria/hives)allergic reactionsinsect bite reactions
Available Over The Counter
Available at pharmacies without a prescription. Rules may vary by country.