What it is used for
- Hay fever (allergic rhinitis)
- Sneezing, runny or itchy nose
- Itchy, watery eyes
- Chronic hives (urticaria) and itchy skin
- Allergy symptoms from pollen, dust, or animals
How it works
Desloratadine blocks histamine, the chemical behind allergy symptoms, easing sneezing, itching, and a runny nose. It is the active form of loratadine.
How it is taken
Comes as tablets, dissolvable tablets, and a liquid (often for children). It is taken by mouth, with or without food. Take it exactly as your doctor, pharmacist, or the label directs, and do not exceed the recommended amount.
No doses here on purpose. The right strength and schedule depend on you — only a doctor or pharmacist should set them. Always follow your prescription and the label.
Common side effects
- Headache
- Tiredness or drowsiness (uncommon)
- Dry mouth
- Stomach upset
- Muscle aches
Serious effects — get help
- Signs of a severe allergic reaction (swelling, breathing difficulty)
- Fast or pounding heartbeat
- Seizures (rare)
- Yellowing of the skin or eyes (rare liver effects)
If a reaction is severe — for example trouble breathing, swelling of the face or throat, or collapse — go to the nearest emergency room now or call your local emergency number. Do not wait for an online consultation.
Interactions to watch
- Other sedating medicines (may add to any drowsiness)
- Alcohol
- Other antihistamines or combination allergy products
Who should take care
- Tell your clinician if you are pregnant, planning pregnancy, or breastfeeding
- Caution with liver or kidney problems
- Avoid if allergic to desloratadine or loratadine
- Generally non-drowsy, but check how it affects you before driving