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What Is Desloratadine?

Desloratadine is an antihistamine that reduces the effects of the natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Desloratadine is used to treat the symptoms of allergies, such as sneezing, watery eyes, and runny nose. It is also used to treat skin hives and itching in people with chronic skin reactions.

Desloratadine may also be used for purposes not listed in this medication guide.

Why is this medication prescribed?

Desloratadine is used to relieve hay fever and allergy symptoms, including sneezing; runny nose; and red, itchy, tearing eyes. It is also used to treat hives. Desloratadine is in a class of medications called antihistamines. It works by blocking histamine, a substance in the body that causes allergic symptoms.

Why it's used

Desloratadine oral tablet is used to treat nasal and non-nasal symptoms of seasonal and perennial allergic rhinitis (allergies). It’s also used to help relieve chronic itching caused by hives.

How should this medicine be used?

Desloratadine comes as a tablet, oral solution (liquid), and an orally disintegrating tablet to take by mouth. It is usually taken once a day with or without food. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take desloratadine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

To take the orally disintegrating tablet, use dry hands to peel back the foil packaging. Immediately take out the tablet and place it on your tongue. The tablet will quickly dissolve and can be swallowed with saliva. Orally disintegrating tablets may be taken with or without water.

Highlights for desloratadine

Desloratadine oral tablet is available as a brand-name drug and a generic drug. Brand name: Clarinex.

Desloratadine comes as a tablet, disintegrating tablet, and syrup. You take all forms by mouth.

Desloratadine oral tablet is used to treat nasal and non-nasal symptoms of allergic rhinitis. It’s also used to relieve chronic itching caused by hives.

How it works

Desloratadine belongs to a class of drugs called antihistamines. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions.

Desloratadine works by blocking the release of a chemical called histamine from the cells in your body. This helps relieve symptoms of allergic rhinitis. These include sneezing, runny nose, and red, watery, and itchy eyes.

Important warnings

Allergy warning: You shouldn’t use desloratadine if you’re allergic to it or any of its components. This drug can cause a hypersensitivity (allergic) reaction. This can lead to itching, rash, swelling, shortness of breath, and swelling of your lips, face, or tongue.