Astemizole is used in the treatment of allergic eye disease, nasal allergy symptoms, allergic conditions, sneezing, and runny nose due to allergies, as well as allergic skin conditions.
How Astemizole Works Astemizole is an antihistamine medication that treats allergy symptoms such as itching, swelling, and rashes by blocking the effects of a chemical messenger known as histamine in the body.
Common side effects of Astemizole include sleepiness.