
Clarinex (desloratadine) is a prescription medication used to treat the symptoms associated with seasonal and year-round (chronic) allergies. Seasonal allergies are often caused by exposure to outdoor allergens such as tree pollen, grasses, and weeds while chronic allergies are caused by indoor allergens such as mold, pet dander, and dust mites.

Since cold or allergy medicine is usually taken only as needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at your next regularly scheduled time. Do not take extra medicine to make up the missed dose.

The FDA has recently approved Clarinex-D 24 Hour (desloratadine 5 mg and pseudoephedrine sulfate USP 240 mg) extended release tablets to treat nasal and non-nasal symptoms of seasonal allergic rhinitis in patients 12 years of age or older. There were two 2-week trials, both demonstrating significantly greater efficacy of Clarinex-D 24 Hour for allergic rhinitis, compared to desloratidine or pseudoephedrine, which led to FDA approval of this combination 24-hour medication. Clarinex-D 24 Hour also provided significantly greater relief from nasal congestion compared to desloratadine.

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