After School: Zyrtec

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Unusual Behavior May Be Linked to Children's Zyrtec Allergy Medicine

My 7yr old son has been taking Children's Zyrtec Allergy medicine for the past 2 weeks. My husband and I have witnessed some major behavior changes in our son. He seems angry and very irritable. He has been inappropriately lashing out at his 2 yr old sister, which has not been a problem in the past. This evening, after a horrible time getting him to bed, my husband and I discussed what could be causing this negative change in his behavior. We think it may be the Zyrtec. Of course, we will take him off of the medicine and see if it...