desloratadine

[des″lah-rat´ah-dēn] a nonsedating antihistamine (antagonist" >H₁ receptor antagonist) used for treatment of rhinitis" >allergic rhinitis and chronic idiopathic urticaria; administered orally.

desloratadine

Aerius (CA), Clarinex, Clarinex Reditabs, Neoclarityn (UK)

Pharmacologic class: Peripherally selective piperidine, selective histamine₁-receptor antagonist

Therapeutic class: Antihistamine (nonsedating, second generation)

Pregnancy risk category C

Action

Suppresses histamine release at peripheral histamine₁-receptor sites

Availability

Syrup: 2.5 mg/5 ml

Tablets: 5 mg

Tablets (orally disintegrating): 2.5 mg, 5 mg

Indications and dosages

➣ Seasonal and perennial allergic rhinitis; chronic idiopathic urticaria and allergies caused by indoor and outdoor allergens; pruritus; to reduce number and size of hives

Adults and children ages 12 and older: 5 mg/day P.O.

Children ages 6 to 11: 1 tsp (2.5 mg/5 ml syrup) P.O. once daily

Children ages 12 months to 5 years: ⁄2 tsp (1.25 mg in 2.5 ml syrup) P.O. once daily

Children ages 6 to 11 months: 2 ml (1 mg syrup) P.O. once daily

Dosage adjustment

• Hepatic or renal impairment

Contraindications

• Hypersensitivity to drug, its components, or loratadine

Precautions

Use cautiously in:

• renal or hepatic impairment

• elderly patients

• pregnant or breastfeeding patients

• children younger than age 12 (safety and efficacy not established, except syrup).

Administration

• Give with or without food.

Adverse reactions

CNS: dizziness, drowsiness, fatigue, headache

CV: tachycardia, palpitations

EENT: pharyngitis, dry throat

GI: nausea, dyspepsia, dry mouth

GU: dysmenorrhea

Musculoskeletal: myalgia

Other: flulike symptoms, hypersensitivity reaction

Interactions

Drug-diagnostic tests. Bilirubin, hepatic enzymes: increased values

Skin tests: interference with positive reaction to dermal reactivity indicators

Patient monitoring

• Monitor hepatic and renal function test results.

Patient teaching

• Tell patient he may take drug with or without food.

• Instruct patient to report rapid heartbeat, shortness of breath, rash, persistent flulike symptoms, or muscle ache.

• Caution patient to avoid driving and other hazardous activities until he knows how drug affects concentration and alertness.

• As appropriate, review all other significant adverse reactions and interactions, especially those related to the tests mentioned above.

desloratadine

A long-acting, low-sedation, ANTIHISTAMINE drug that does not block cardiac potassium channels and is less likely than some second generation antihistamines to have undesirable cardiac effects. It is also less prone to enter the nervous system and produce sedation. A brand name is Neoclarityn.

单词	desloratadine
释义	desloratadine Translations desloratadine desloratadine [des″lah-rat´ah-dēn] a nonsedating antihistamine (antagonist" >H₁ receptor antagonist) used for treatment of rhinitis" >allergic rhinitis and chronic idiopathic urticaria; administered orally. desloratadine Aerius (CA), Clarinex, Clarinex Reditabs, Neoclarityn (UK) *Pharmacologic class:* Peripherally selective piperidine, selective histamine₁-receptor antagonist *Therapeutic class:* Antihistamine (nonsedating, second generation) *Pregnancy risk category C* Action Suppresses histamine release at peripheral histamine₁-receptor sites Availability Syrup: 2.5 mg/5 ml Tablets: 5 mg Tablets (orally disintegrating): 2.5 mg, 5 mg Indications and dosages ➣ Seasonal and perennial allergic rhinitis; chronic idiopathic urticaria and allergies caused by indoor and outdoor allergens; pruritus; to reduce number and size of hives Adults and children ages 12 and older: 5 mg/day P.O. Children ages 6 to 11: 1 tsp (2.5 mg/5 ml syrup) P.O. once daily Children ages 12 months to 5 years: ⁄2 tsp (1.25 mg in 2.5 ml syrup) P.O. once daily Children ages 6 to 11 months: 2 ml (1 mg syrup) P.O. once daily Dosage adjustment • Hepatic or renal impairment Contraindications • Hypersensitivity to drug, its components, or loratadine Precautions Use cautiously in: • renal or hepatic impairment • elderly patients • pregnant or breastfeeding patients • children younger than age 12 (safety and efficacy not established, except syrup). Administration • Give with or without food. Adverse reactions CNS: dizziness, drowsiness, fatigue, headache CV: tachycardia, palpitations EENT: pharyngitis, dry throat GI: nausea, dyspepsia, dry mouth GU: dysmenorrhea Musculoskeletal: myalgia Other: flulike symptoms, hypersensitivity reaction Interactions Drug-diagnostic tests. Bilirubin, hepatic enzymes: increased values Skin tests: interference with positive reaction to dermal reactivity indicators Patient monitoring • Monitor hepatic and renal function test results. Patient teaching • Tell patient he may take drug with or without food. • Instruct patient to report rapid heartbeat, shortness of breath, rash, persistent flulike symptoms, or muscle ache. • Caution patient to avoid driving and other hazardous activities until he knows how drug affects concentration and alertness. • As appropriate, review all other significant adverse reactions and interactions, especially those related to the tests mentioned above. desloratadine A long-acting, low-sedation, ANTIHISTAMINE drug that does not block cardiac potassium channels and is less likely than some second generation antihistamines to have undesirable cardiac effects. It is also less prone to enter the nervous system and produce sedation. A brand name is Neoclarityn.
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