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AllerClear D-24 Hour Side Effects

Generic name: loratadine / pseudoephedrine

Medically reviewed by Last updated on Apr 9, 2024.

Note: This document contains side effect information about loratadine / pseudoephedrine. Some dosage forms listed on this page may not apply to the brand name AllerClear D-24 Hour.

Applies to loratadine / pseudoephedrine: oral tablet extended release, oral tablet extended release 12 hr, oral tablet extended release 24 hr.

Serious side effects

Along with its needed effects, loratadine/pseudoephedrine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Other side effects

Some side effects of loratadine / pseudoephedrine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Incidence not known

For Healthcare Professionals

Applies to loratadine / pseudoephedrine: oral tablet extended release.


The manufacturer has not provided adverse event information.[Ref]


1. (2019) "Product Information. Claritin-D 12 Hour (loratadine-pseudoephedrine)." Schering-Plough Corporation

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.