6 doctors weighed in:

What are the differences between Claritin (loratadine) and clarinex?

6 doctors weighed in
Dr. Stephen Kimura
Internal Medicine - Allergy & Immunology
4 doctors agree

In brief: Metabolite

Clarinex (desloratadine) is des-loratadine and Claritin is loratadine.
Clarinex (desloratadine) is the active metabolite of claritn. So (according to the manufacturer) you have the benefits of loratidine with minimal side effects. It is common in the pharmaceutical industry to use active metabolites or isomers of drugs. This potentially gives you a more active compound while minimizing the potential side effect.

In brief: Metabolite

Clarinex (desloratadine) is des-loratadine and Claritin is loratadine.
Clarinex (desloratadine) is the active metabolite of claritn. So (according to the manufacturer) you have the benefits of loratidine with minimal side effects. It is common in the pharmaceutical industry to use active metabolites or isomers of drugs. This potentially gives you a more active compound while minimizing the potential side effect.
Dr. Stephen Kimura
Dr. Stephen Kimura
Thank
Dr. Jack Mutnick
Internal Medicine - Allergy & Immunology

In brief: Antihistamines

Claritin is Loratadine and Clarinex is desloratadine.
Clarinex is an isomer of Claritin and was created by the company solely as a monetary instrument since Claritin was going off patent and Clarinex could only be obtained by prescription. Take it from an allergist, claritin/clarinex are poor antihistamines. Go with zyrtec or allegra (fexofenadine).

In brief: Antihistamines

Claritin is Loratadine and Clarinex is desloratadine.
Clarinex is an isomer of Claritin and was created by the company solely as a monetary instrument since Claritin was going off patent and Clarinex could only be obtained by prescription. Take it from an allergist, claritin/clarinex are poor antihistamines. Go with zyrtec or allegra (fexofenadine).
Dr. Jack Mutnick
Dr. Jack Mutnick
Thank
Read more answers from doctors