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A 32-year-old member asked:

Which is better for allergies zyrtec or claritin (loratadine)?

2 doctor answers3 doctors weighed in
Dr. Barbara Stark Baxter
Allergy and Immunology 42 years experience
Zyrtec vs claritin (loratadine): Claritin is the most ineffective antihistamine ever approved for market. Its effect is weak and can take a long time to work. But many patients prefer it to zyrtec because it is less sedating (8% vs 13%) still, both ares safe and easy to try. The new version, Clarinex is more different from Claritin than xyzal (levocetirizine) is from zyrtec.
Dr. Arthur Torre
Pediatric Allergy and Asthma 51 years experience
Zyrtec (cetirizine): Zyrtec (cetirizine) has more anti-allergy or anti-inflamatory effects than clariten (loratidine) and is often better for most allergic symptoms. It does cause drowsiness in some patients. Antihistamines work best when taken at bedtime if you are taking them on a daily basis - as in a pollen allergy or allergy to a pet that lives in your house.

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A 48-year-old member asked:

For children's allergies should you combine zyrtec and claritin (loratadine)?

1 doctor answer5 doctors weighed in
Dr. Michael Zacharisen
Allergy and Immunology 33 years experience
Pick one: While both zyrtec (cetirizine) and Claritin (loratadine) are approved for treatment of allergies in children, it is rarely necessary to use both at the same time. In my experience, Claritin works for many and zyrtec works for most patients. While there is little harm to combining these, it doesn't add to the effectiveness.

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Last updated Feb 2, 2020

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