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What is in Claritin (loratadine) to make you hyper?

1 doctor weighed in
Dr. Anne Maitland
Internal Medicine - Allergy & Immunology

In brief: Antihistamine

It is not common but children and adults are known to become hyper rather than sedated from 1st & even 2nd generation histamine blockers like claritin (loratadine).
If it is Claritin (loratadine) alone, not Claritin (loratadine) d ( lots of decongestant), this is considered an idiopathic reaction. Meaning that your metabolism break Claritin (loratadine) down in a way that causes agitation, a stimulant.

In brief: Antihistamine

It is not common but children and adults are known to become hyper rather than sedated from 1st & even 2nd generation histamine blockers like claritin (loratadine).
If it is Claritin (loratadine) alone, not Claritin (loratadine) d ( lots of decongestant), this is considered an idiopathic reaction. Meaning that your metabolism break Claritin (loratadine) down in a way that causes agitation, a stimulant.
Dr. Anne Maitland
Dr. Anne Maitland
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