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Where is Desloratadine used?

Desloratadine is used for the relief of an allergy symptom such as:

  • Runny nose
  • Watery eyes
  • Itching eyes or nose
  • Hives
  • Sneezing
  • Itching

This belongs to the class of medications called antihistamines. A class of medications is a group of drugs that work similarly. These medications are often used to treat the same conditions. Desloratadine comes as a tablet for oral administration. The Food and Drug Administration (FDA) has approved this prescription.

How does Desloratadine work?

Desloratadine blocks one type of receptor for histamine, mainly the H1 receptor. It prevents the activation of H1 receptor-containing cells by histamine. This drug does not readily enter the brain from the blood and causes less drowsiness (sedation).

Histamine is a chemical that is responsible for many of the signs and symptoms of allergic reactions like swelling of the lining of the nose, itchy eyes, and sneezing. This medicine works by blocking a certain natural substance called histamine that your body makes during an allergic reaction.

How is Desloratadine taken?

The recommended dosage depends on your condition, age, and response to the treatment.

  • For adults and children 12 years or older is 5 mg a day.
  • For children 6 to 11 years of age, 2.5 mg of tablet once a day.

You may take the medicine with or without food. Take it exactly as it is prescribed. Do not take more or less than given by your doctor. If you missed a dose, call your doctor for instructions. Do not take two doses to make up for the missed one.

This medicine can interact with other medications, herbs, and vitamins you may be taking. An interaction is when a substance changes the way a drug works. This could be harmful or prevent the medicine from working well. To help avoid interactions, your doctor should carefully manage all of your medications. Make sure to tell your doctor about all medications, herbs, and vitamins you are taking. To find out how this medicine interacts, discuss it with your doctor.

What are the possible side effects of Desloratadine?

  • Muscle pain
  • Indigestion
  • Diarrhea
  • Tired feeling
  • Fatigue
  • Trouble sleeping
  • Cough
  • Stomach upset
  • Dry mouth
  • Sore throat
  • Nausea
  • Loss of appetite
  • Drowsiness
  • Dizziness
  • Headache
  • Nosebleeds
  • Fever

What are the precautions in taking Desloratadine?

  • It is important to inform your doctor if you ever had an allergic reaction to this drug or if you have any allergies. If an allergic reaction happens, stop taking this drug and call for medical assistance.
  • Consult your doctor first if you are pregnant or breastfeeding women.
  • Taking this medication in higher doses may make you feel sleepy. Do not take more than the prescribed dosage.
  • You may get drowsy or dizzy. Do not use machinery, drive, or do any activities that need mental alertness until you know how this drug affects you.  
  • If you are an older patient taking this medicine, do not sit or stand up quickly.
  • Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks while having this treatment.
  • Keep this away from the reach of children or your pets.