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A 30-year-old member asked:

what is cetirizine hydrochloride used for?

1 doctor answer2 doctors weighed in
Dr. Andrew Murphy
Allergy and Immunology 29 years experience
ANtihistamine: Cetrizine is an antihistamine and is used for allergy symptoms.

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CA
A 44-year-old member asked:

Are there major differences between loratadine and cetirizine?

2 doctor answers12 doctors weighed in
Dr. Andrew Murphy
Allergy and Immunology 29 years experience
Not really: Both are antihistamines that work well. There may some subtle differences between the two but in general either one is a good choice.
A 37-year-old member asked:

What is the difference between zyrtec and xyzal (levocetirizine)?

4 doctor answers8 doctors weighed in
Dr. Jason Black
Internal Medicine 25 years experience
Very similar: Zyrtec is the brand name for the molecule cetirizine, whereas xyzal is levocetirizine, the mirror image. Xyzal came to market when zyrtec was going generic and over-the-counter. There are subtle differences between the two, but they behave very similarly.
CA
A 26-year-old member asked:

Are there any long term effects to taking zyrtec (cetirizine) everyday?

2 doctor answers2 doctors weighed in
Dr. David Finke
Obstetrics and Gynecology 15 years experience
No, but rarely yes.: Zyrtec (cetirizine) is pretty well-tolerated and now is over the counter. You should check with your doctor if you have known liver disease or experience difficulty breathing, seizures, or low blood pressures.
A 37-year-old member asked:

I've been taking certrizine for the past 14 years for my urticaria and anaphylaxis.What is the worst side effect that could happen?

2 doctor answers4 doctors weighed in
Dr. Jack Mutnick
Allergy and Immunology 17 years experience
Zyrtec (cetirizine): Always read the bottle for long term side effects some of which can be headaches (too dry sinuses), weakened urinary stream (more common in men with big prostates), abdominal pain, dry mouth.
A 41-year-old member asked:

How does zyrtec (cetirizine) (reactine) 10 mg work?

1 doctor answer1 doctor weighed in
Dr. David Rosenthal
Allergy and Immunology 21 years experience
Zyrtec (cetirizine) = Cetirizine: Zyrtec (cetirizine) is a long action, non-sedating antihistamine. It works well for many people. It functions by blocking histamine release from cells, thereby stopping allergic symptoms.

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Last updated Sep 6, 2018

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