Desloratadine

Generic name: Desloratadine
Drug class: Antihistamines

Usage of Desloratadine

Desloratadine is an antihistamine that is used to treat the symptoms of allergies, such as sneezing, watery eyes, itching, and runny nose.

Desloratadine 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.

Desloratadine side effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Common side effects of desloratadine may include:

  • dry mouth, sore throat;
  • muscle pain;
  • drowsiness, tiredness; or
  • menstrual pain.

    • This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

    Before taking Desloratadine

    You should not use desloratadine if you are allergic to desloratadine or to loratadine (Claritin).

    Tell your doctor if you have ever had:

  • kidney disease; or
  • liver disease.

    • Tell your doctor if you are pregnant or breastfeeding.

    This medicine may contain phenylalanine. Tell your doctor if you have phenylketonuria (PKU).

    Relate drugs

    How to use Desloratadine

    Usual Adult Dose for Allergic Rhinitis:

    5 mg orally once a dayUses:-Relief of nasal and non-nasal symptoms of seasonal allergic rhinitis-Relief of nasal and non-nasal symptoms of perennial allergic rhinitis-Symptomatic relief of pruritus, reduction in the number of hives, and size of hives in patients with chronic idiopathic urticaria

    Usual Adult Dose for Urticaria:

    5 mg orally once a dayUses:-Relief of nasal and non-nasal symptoms of seasonal allergic rhinitis-Relief of nasal and non-nasal symptoms of perennial allergic rhinitis-Symptomatic relief of pruritus, reduction in the number of hives, and size of hives in patients with chronic idiopathic urticaria

    Usual Pediatric Dose for Allergic Rhinitis:

    6 to 11 months: 1 mg orally once a day12 months to 5 years: 1.25 mg orally once a day6 to 11 years: 2.5 mg orally once a day12 years and older: 5 mg orally once a dayUses:-Patients 6 months and older: Relief of nasal and non-nasal symptoms of perennial allergic rhinitis-Patients 6 months and older: Symptomatic relief of pruritus, reduction in the number of hives, and size of hives in patients with chronic idiopathic urticaria-Patients 2 years and older: Relief of nasal and non-nasal symptoms of seasonal allergic rhinitis

    Usual Pediatric Dose for Urticaria:

    6 to 11 months: 1 mg orally once a day12 months to 5 years: 1.25 mg orally once a day6 to 11 years: 2.5 mg orally once a day12 years and older: 5 mg orally once a dayUses:-Patients 6 months and older: Relief of nasal and non-nasal symptoms of perennial allergic rhinitis-Patients 6 months and older: Symptomatic relief of pruritus, reduction in the number of hives, and size of hives in patients with chronic idiopathic urticaria-Patients 2 years and older: Relief of nasal and non-nasal symptoms of seasonal allergic rhinitis

    Warnings

    Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

    What other drugs will affect Desloratadine

    Tell your doctor about all your other medicines, especially:

  • a cold or allergy medicine;
  • cimetidine;
  • fluoxetine (Prozac);
  • ketoconazole; or
  • an antibiotic--azithromycin (Z-Pak) or erythromycin.

    • This list is not complete. Other drugs may affect desloratadine, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

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