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A 31-year-old member asked:

Might there a good allergy medication similar to xyzal (levocetirizine) or claritin that doesn't cause weight gain?

2 doctor answers6 doctors weighed in
Dr. Steven Machtinger
Allergy and Immunology 45 years experience
Cetirizine (Zyrtec): Zyrtec 10 mg contains 5 mg of xyzal (levocetirizine) and 5 mg of an inactive mirror-image of xyzal (levocetirizine). If xyzal (levocetirizine) doesn't make you gain weight neither will zyrtec.
Dr. Martin Ostro
Allergy and Immunology 50 years experience
Zyrtec/cetirizine: Cetirizine (generic form of zyrtec) is about as effective as xyzal (levocetirizine) and more effective than Claritin without weight gain listed as a side-effect on package insert.

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A 39-year-old member asked:

Is there a good allergy medication similar to xyzal (levocetirizine) that doesn't cause weight gain?

1 doctor answer3 doctors weighed in
Dr. Gary Steven
Pediatric Allergy and Asthma 31 years experience
Many: All of the antihistamines are similar, but different ones may work better for different people. Clarinex (desloratadine) is the only other second-generation antihistamine still available by prescription; cetirizine, fexofenadine and loratidine are all available over the counter. It is unusual for antihistamines themselves to cause weight gain, though - you should make sure that nothing else is going on.
Last updated May 12, 2017


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