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Desloratadine is an antihistamine medication. It is used to treat symptoms of allergic rhinitis, which is inflammation of the nose caused by an allergen. Common symptoms can include sneezing, itchy, watery eyes or runny nose.
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What is Desloratadine?

Desloratadine is an anti-allergy medication. It can be used to treat and control symptoms of allergic rhinitis. Allergic rhinitis is a condition causing inflammation of the nasal passages and sinuses. It is usually caused by an allergen, typically pollen, dust or flakes of skin from animals. Desloratadine can help relieve the symptoms of allergic rhinitis, which can include runny nose, sneezing or nasal congestion.

Desloratadine is a prescription only medication. You must have a prescription in order to buy it. However, we can prescribe it to you following an online consultation. Contact us to find out more.

For more information about Desloratadine, consult the patient information leaflet.

How it works

Symptoms of allergic rhinitis are caused when the body reacts to an allergen. Exposure to an allergen causes the body to produce a chemical called histamine, which causes inflammation in the nasal passage. This can result in nasal congestion, a runny nose, itchy or watery eyes and sneezing.

Desloratadine is an antihistamine. This means it works by blocking the production of histamine, preventing symptoms of allergic rhinitis from occurring.

Desloratadine usually starts to work within 60 - 75 minutes, and lasts up to 24 hours.

Before you take it

You should not take Desloratadine if you are allergic to any of the ingredients in this medication. A full list of ingredients is contained in the patient information leaflet. If you are allergic to any of the ingredients, contact your doctor to discuss an alternative treatment for your allergic rhinitis.

You must also not take this medicine if you are allergic to the related antihistamine, loratadine.

If you experience severe kidney problems, you should talk to your doctor before taking Desloratadine. This is because you may require extra monitoring as you are taking Desloratadine.

Desloratadine is not recommended during pregnancy, as its effect on an unborn baby is unknown. Antihistamine nasal sprays are usually recommended for use during pregnancy. You should speak with your doctor to discuss treatment for your rhinitis while you are pregnant.

Desloratadine may pass into breast milk. For this reason it is not recommended if you are breastfeeding. You should consult your doctor to discuss a more appropriate method of treatment for your symptoms.

If you are due to have skin patch tests to test for allergic reaction within the next 48 hours, you should avoid taking Desloratadine. The antihistamine effect may make your test results unreliable.

Desloratadine is a non-sedating antihistamine. This means that it is designed not to make you drowsy. However, as with all medication, you should establish how this medication affects you before you drive or operate machinery while taking it. It has been reported that Desloratadine can cause drowsiness in some patients.

Desloratadine is known to interact with a very limited number of other medications. You should make sure you tell your doctor about all the other medicines you are taking before you take Desloratadine.

Speak to your doctor or pharmacist if you have any further questions before taking Desloratadine.

Dosage Instructions

You must always take Desloratadine as prescribed by your doctor or pharmacist. Never exceed the stated dose. If you are in any way unsure of how to take Desloratadine, consult your doctor or pharmacist for advice.

The recommended dose of Desloratadine to treat allergic rhinitis is one tablet, once a day. This will depend on the severity of your symptoms. If you are suffering from persistent rhinitis, you may need to take one tablet every day. If your rhinitis is intermittent, you may only need to take a tablet on the days where you are suffering from symptoms of rhinitis. Your doctor will provide you with a dosing schedule most appropriate for your condition.

These tablets are for oral use only. Swallow them whole - do not suck, crush or chew them. Desloratadine tablets can be taken with or without food.

Store Desloratadine in a cool, dry place, free from heat and moisture. Keep it out of the reach of children and pets.

Common Side Effects of Desloratadine

Like all medication, Desloratadine may cause unwanted side effects. These are typically mild to moderate in nature, and should go away on their own as your body becomes used to the medication. However, if they persist, or they concern you, you may wish to visit your doctor for advice. Side effects can include:

  • Fatigue
  • Dry mouth
  • Headache

Desloratadine may cause more serious side effects. These are very rare, but you should consult your doctor if you experience them. Possible side effects may include:

  • Nausea or vomiting
  • Dizziness
  • Restlessness or increased body movement
  • Stomachache
  • Palpitations
  • Insomnia
  • Liver inflammation

It’s also possible to experience a severe allergic reaction to Desloratadine. This is extremely rare. However, an allergic reaction is an emergency, and you must stop taking Desloratadine and immediately seek medical advice if you believe you are experiencing one. Symptoms may include:

  • Trouble breathing or speaking
  • Hives or nettle rash
  • Wheezing
  • Tightness in the chest or throat
  • Skin rash, including swelling, itching, redness or blistering

This is not an exhaustive list of side effects. For a complete list, consult the patient information leaflet or speak with your doctor.

Frequently Asked Questions (FAQs)

Is Desloratadine suitable for children?

Desloratadine is suitable for children 12 years of age and over to treat allergic rhinitis. However, we do not prescribe any medication to anyone under the age of 18.

I’m pregnant. Can I take Desloratadine?

Desloratadine should not normally be taken if you are pregnant unless it has specifically been prescribed by a doctor. Other methods of controlling your symptoms are considered safer to take during pregnancy. Consult your doctor to discuss your symptoms before taking Desloratadine.

What happens if I miss a dose?

If you forget to take Desloratadine, take it as soon as you remember, and then return to your regular dosing schedule. Never take more than one dose to make up for a missed dose.

What happens if I take too much?

An overdose of Desloratadine is unlikely to harm you. However, if you believe you have taken too much, you should consult a doctor or pharmacist for advice.

More Information
Dosage 5mg
Dosage Instructions Take ONE daily as directed.