Zyrtec (Cetirizine)

Description

ZYRTEC (Cetirizine) 10 mg: 24-hour allergy relief

Zyrtec contains cetirizine 10 mg, a once-daily antihistamine. It relieves hay fever and other upper respiratory allergy symptoms, and itching from hives, for 24 hours. Cetirizine often starts working within an hour.

What it helps with

• Sneezing and runny nose
• Itchy, watery eyes
• Itchy nose or throat
• Itching and rash from hives

How to take it

• Adults and children 6 years and over: 1 tablet (10 mg) once a day. Don’t take more than 10 mg in 24 hours.
• Adults 65 and over: ask a doctor before use.
• Children under 6: ask a doctor.
• Take it with or without food.

Possible side effects

Some people feel drowsy or tired, especially at first. Other side effects can include dry mouth, headache and sore throat.

Warnings

• Drowsiness may occur. Be careful when driving or operating machinery until you know how it affects you.
• Avoid alcohol and other sedatives, which can make drowsiness worse.
• Don’t use if you’ve had an allergic reaction to cetirizine or hydroxyzine.
• Ask a doctor before use if you have liver or kidney disease.
• Get emergency help if hives come with trouble breathing, swelling of the tongue or lips, wheezing, dizziness or fainting.
• If you are pregnant or breastfeeding, ask a healthcare professional before use.

Product details

• Active ingredient: Cetirizine hydrochloride 10 mg
• Form: Tablets
• Medicine type: Antihistamine (second generation)

Frequently asked questions

Can I take Zyrtec every day?

Yes. Cetirizine is designed for once-daily use during allergy season or year-round, as long as you follow the label. If you need it for months at a time, mention it to your doctor or pharmacist.

How fast does Zyrtec work?

Many people notice relief within about an hour, and one dose lasts 24 hours.

Can I drink alcohol with Zyrtec?

It’s best to avoid alcohol. Both can cause drowsiness, and together the effect is stronger.

Related guide

Read our guide: Hives: causes, relief and when to worry · Allergy medicine for kids: what’s safe and how much to give · Zyrtec vs Claritin vs Allegra: which allergy medicine is right for you?

Important

This page is for general information only and isn’t a substitute for advice from a doctor or pharmacist. Always read the label and leaflet that come with the product. Don’t start, stop or change a medicine without talking to a qualified healthcare professional.