Zyrtec is the brand name of Cetirizine. It’s an antihistamine that helps with symptoms including watery eyes, runny nose, itchy eyes/nose, sneezing, hives, and itching. It works by inhibiting the production of a natural chemical produced by your body during an allergic reaction.

If you’re self-treating with an over-the-counter remedy, read the package instructions thoroughly before using it. Consult your pharmacist if you have any concerns. Take this medication as suggested by your doctor, generally twice daily, with or without food (every 12 hours), as per Web MD reports.

Your dose will be determined by your age, medical condition, and treatment response. Do not use this medication in larger doses or more frequently than recommended.


Your doctor may prescribe cetirizine if you suffer from year-round allergies or seasonal allergies such as hay fever. Zyrtec relieves allergy symptoms but does not prevent them. Your body creates histamine when it comes into contact with items to which you may be allergic.

Most of the symptoms associated with allergic responses are caused by histamine. Cetirizine (Zyrtec) is an antihistamine. It works by inhibiting the effects of histamine.

Sneezing, runny nose, itchy or watery eyes, itchy throat, and runny nose are some of the mild to moderate allergy symptoms that Zyrtec (Cetirizine) can assist with.

Side effects

As per Health line reports, sleepiness, blurred vision, dry mouth, headache, dizziness and exhaustion and drowsiness are some of the medication’s adverse effects.

This medicine infrequently causes a severe allergic reaction. Tell your doctor if you have any unexpected adverse effects while taking cetirizine. Discuss any persistent or troublesome adverse effects as well.

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