osudhkosh

Generic

Desloratadine

64 brands available in the market

At a glance

Desloratadine is an antihistamine used for the relief of symptoms associated with seasonal and perennial allergic rhinitis and chronic idiopathic urticaria.

Description

Desloratadine, the major active metabolite of Loratadine, is a non-sedating, long acting tricyclic histamine antagonist with selective H1-receptor histamine antagonist activity. Desloratadine also inhibits histamine release from human mast cell.

Indications
  • Seasonal and perennial allergic rhinitis (sneezing, nasal discharge, itching, congestion, ocular itching, tearing, redness)
  • Chronic idiopathic urticaria (hives, itching)
Therapeutic class

Non-sedating antihistamines

Pharmacological class

Non-sedating Antihistamine (H1-antagonist)

Pharmacology

Desloratadine, the major active metabolite of Loratadine, is a non-sedating, long acting tricyclic histamine antagonist with selective H1-receptor histamine antagonist activity. Desloratadine also inhibits histamine release from human mast cell.

Mechanism of action

Desloratadine blocks histamine action at peripheral H1-receptors, relieving allergy symptoms such as itching, swelling, and rashes, and reduces pro-inflammatory mediator release from mast cells.

Dosage

Adults & ≥12 years: 5 mg once daily.
Children 6-11 years: 2.5 mg (5 ml syrup) once daily.
Children 1-5 years: 1.25 mg (2.5 ml syrup) once daily.
Children 6-11 months: 1 mg (2 ml drops) once daily.
Hepatic or renal impairment: 5 mg every other day.

Administration

May be taken with or without food, but it is better to take it at a fixed time. Swallow the tablet whole, do not chew, crush or break.

Missed dose

If you miss a dose of Desloratadine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose. Do not double the dose.

Side effects

Common: Sleepiness, headache, nausea, fatigue, dizziness, pharyngitis, dyspepsia, myalgia.

Precautions & warnings

Caution while driving (dizziness, sleepiness may occur). Avoid alcohol (may cause excessive drowsiness). Stop at least 3 days before allergy testing. Caution in liver and kidney disease.

Contraindications

Hypersensitivity.

Drug interactions

Drugs affecting hepatic microsomal enzymes (azithromycin, cimetidine, erythromycin, fluoxetine, ketoconazole): May increase plasma concentrations.

Food interactions

It is unsafe to consume alcohol with Desloratadine (may cause excessive drowsiness).

Use in pregnancy

Pregnancy Category C. The safe use of Desloratadine during pregnancy has not been established. Should be used only if clearly indicated.

Pregnancy Category: C — always consult a doctor before taking during pregnancy.

Use in lactation

Desloratadine passes into breast milk. Because of its low milk levels and lack of sleepiness, use would not be expected to cause adverse effects in breastfed babies.

Pediatric use

Safety and effectiveness in children below 6 months have not been established.

Geriatric use

No specific dosage adjustment is necessary for elderly patients.

Renal / hepatic impairment

Renal impairment: Use with caution. Dose adjustment may be needed.
Hepatic impairment: Use with caution. Dose adjustment may be needed.

Overdose effects

No clinically relevant adverse effects have been reported.

Storage conditions

Store below 30°C in a cool & dry place, protected from light. Keep out of reach of children.

Chemical structure

Desloratadine

Common questions

What is Desloratadine used for?
It is used for allergic rhinitis (sneezing, runny nose, itchy eyes) and hives.
What is the dosage of Desloratadine?
Adults & ≥12 years: 5 mg once daily. Children: age-based dosing.
What are the common side effects?
Headache, sleepiness, nausea, fatigue, dizziness.
What precautions should be taken while taking Desloratadine?
Be cautious while driving, avoid alcohol, and stop 3 days before allergy testing.
Is Desloratadine safe during pregnancy?
Pregnancy Category C, consult your doctor.
⚠️ This information is for educational purposes only — not a substitute for medical advice. Consult a registered physician before taking any medicine.