Zyrtec
Cetirizine Hydrochloride · 10 mg · tablet
Zyrtec details
- Active ingredient
- Cetirizine Hydrochloride
- Strength
- 10 mg
- Form
- tablet
- Drug class
- Second-generation antihistamine
- Manufacturer
- GSK / UCB
- Registered in
- Pakistan
How does Zyrtec work?
Blocks H1 histamine receptors, the signal your body releases during an allergic reaction. Second-generation antihistamines cross into the brain far less than older ones, so they relieve sneezing, itching and a runny nose with much less drowsiness.
How to take Zyrtec
Usually one tablet once daily, with or without food. Many people find evening dosing suits them best if they notice any mild drowsiness. Effects typically begin within an hour and last a full day.
Always follow the dose printed on your pack or given by your prescriber — it can differ from the general guidance above.
Common side effects
- • Mild drowsiness or tiredness (less common than with older antihistamines)
- • Dry mouth
- • Headache
- • Occasional stomach upset
Seek medical advice
- • Fast or irregular heartbeat
- • Difficulty passing urine
- • Severe allergic reaction — swelling of the face, lips or throat
Who should be careful with Zyrtec?
- •Kidney or liver disease — a lower dose is often needed
- •Pregnancy and breastfeeding — discuss with a doctor first
- •Before driving until you know how it affects you
Zyrtec interactions
- •Alcohol — increases drowsiness
- •Sedatives and sleeping tablets — additive drowsiness
- •Other antihistamines, including those in combination cold remedies
This is not a complete list. Tell your pharmacist about every medicine and supplement you take.
Other brands containing Cetirizine Hydrochloride
Frequently asked questions about Zyrtec
What is Zyrtec used for?
Zyrtec contains Cetirizine Hydrochloride, a Second-generation antihistamine. Check the package insert for the approved indications in Pakistan.
How does Zyrtec work?
Blocks H1 histamine receptors, the signal your body releases during an allergic reaction. Second-generation antihistamines cross into the brain far less than older ones, so they relieve sneezing, itching and a runny nose with much less drowsiness.
How should I take Zyrtec?
Usually one tablet once daily, with or without food. Many people find evening dosing suits them best if they notice any mild drowsiness. Effects typically begin within an hour and last a full day. Always follow the dose on your pack or from your prescriber.
What are the side effects of Zyrtec?
Common: Mild drowsiness or tiredness (less common than with older antihistamines), Dry mouth, Headache, Occasional stomach upset. Seek medical advice for: Fast or irregular heartbeat; Difficulty passing urine; Severe allergic reaction — swelling of the face, lips or throat.
Is Zyrtec available over the counter in Pakistan?
Zyrtec is generally available without a prescription in Pakistan, but a pharmacist can advise whether it suits you.
What are the alternatives to Zyrtec?
Other brands containing the same active ingredient in Pakistan include Rigix, Softin, Cetrizet. They are not always interchangeable — check with a pharmacist.
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