Cetirizine (Zyrtec)
$1.08
Zyrtec contains Cetirizine and relieves hay fever, hives and other allergy symptoms such as sneezing and itchy eyes.
Drug Information
9 reviews for Cetirizine (Zyrtec)
Zyrtec contains Cetirizine.
Cetirizine is an antihistamine that relieves hay fever, year-round allergies and hives. It works quickly and lasts all day.
It can make a few people slightly sleepy, so some prefer to take it in the evening.
What is it used for?
- Hay fever and year-round allergies
- Hives and itchy skin
How does it work?
Cetirizine blocks histamine, the chemical released during an allergic reaction, which stops sneezing, itching and watery eyes.
This information is written in simple words to help you understand this product. It does not replace advice from your doctor or pharmacist.
Read these points before you start. If any of them apply to you, talk to your doctor or pharmacist first.
- Tell your doctor if you have kidney or liver problems.
- Tell your doctor if you are pregnant or breastfeeding.
- Some people still feel a little sleepy. Do not drive until you know how it affects you, and be careful with alcohol.
- Tell your doctor or pharmacist about every other medicine, vitamin or herbal product you use.
- Keep this product out of the reach and sight of children.
Like all medicines, Zyrtec can cause side effects, but not everybody gets them.
Common side effects
- Headache
- Dry mouth
- Feeling tired or a little sleepy
- Feeling sick
These are usually mild and often get better as your body gets used to it. Tell your doctor if they bother you or do not go away.
Stop using it and get medical help straight away if you notice:
- Signs of a serious allergic reaction, such as swelling of the face, lips or throat, or trouble breathing
- A fast or uneven heartbeat
This is not a complete list. If you notice anything unusual, ask your doctor or pharmacist.
- Take it once a day, with or without food.
- The usual adult dose is 10 mg once a day. Some people take 5 mg.
- If it makes you sleepy, take it in the evening.
If you miss a dose: Take it as soon as you remember, unless it is nearly time for your next dose. Never take two doses at once.
If you use too much: Contact your doctor, a poison control centre or your local emergency number straight away, even if you feel fine. Take the pack with you.
How to store it: Keep it in its original pack at room temperature (below 25°C / 77°F), away from heat, damp and direct sunlight. Do not use it after the expiry date.
- QHow quickly does Zyrtec work?
- A
Most people feel relief within 1 to 3 hours.
- QCan I take Zyrtec every day?
- A
Yes. For hay fever or long-lasting hives, it can be taken every day during the season or for as long as needed.
- QCan I drink alcohol with Zyrtec?
- A
It is best to limit alcohol. Together they can make you more drowsy, even with antihistamines that do not usually cause sleepiness.

Charlotte Moreau –
Delivery was smooth with no surprises. I checked everything against my order and it was all correct. The order form was short and easy to fill in. Everything went well, so I will be back.
William Brown –
I was a bit unsure at first, but ordering here worked out fine. It was dispatched fast and reached me soon after. Adding Cetirizine to the cart and paying was quick.
Sebastian Morris –
First time ordering here and it was a pleasant surprise. I had a question about my Cetirizine order and the support team replied fast. It came in a reasonable amount of time.
Fernando Anderson –
Ordering from this site was easy. Everything I received was exactly what I ordered. They answered my email within a day. I think the pricing is fair for what you get. Five stars from me.
Ishaan Roberts –
The box was sturdy and the contents were well protected. All good on my side! The confirmation emails were clear and arrived quickly.
Oscar Lee –
I have ordered Zyrtec here before and this time was just as smooth. The steps at checkout were easy to follow. The expiry date was fine and everything looked as it should. I got an order confirmation right away and updates after that. Easy to deal with, which is what I wanted.
David Williams –
My experience with this order was good. Support was friendly and cleared up my doubt quickly. I was not left waiting long, the delivery was quick.
Ming Cook –
Just received my Zyrtec and wanted to share how it went. It was affordable and the total at checkout matched what I expected. Payment went through smoothly on the first try. Good service, will reorder when I need to.
Zaid Petrov –
I used this site for my latest order and had no problems. Communication was good throughout the order. What arrived was just as listed on the site. Another good thing: the price was fair compared to other places I checked.