desloratadine and pseudoephedrine sulfate
Brand names: CLARINEX-D 12 HOUR
Warnings
5 WARNINGS AND PRECAUTIONS Cardiovascular and central nervous system effects: Use with caution in patients with cardiovascular disorders. ( 5.1 ) Coexisting conditions: Use with caution in patients with increased intraocular pressure, prostatic hypertrophy, diabetes mellitus, or hyperthyroidism. ( 5.2 ) 5.1 Cardiovascular and Central Nervous System Effects The pseudoephedrine sulfate contained in CLARINEX-D 12 HOUR Extended Release Tablets, like other sympathomimetic amines, can produce cardiovascular and central nervous system (CNS) effects in some patients such as insomnia, dizziness, weakness, tremor, or arrhythmias. In addition, central nervous system stimulation with convulsions or cardiovascular collapse with accompanying hypotension has been reported. Therefore, CLARINEX-D 12 HOUR Extended Release Tablets should be used with caution in patients with cardiovascular disorders, and should not be used in patients with severe hypertension or severe coronary artery disease. 5.2 Coexisting Conditions CLARINEX-D 12 HOUR Extended Release Tablets contain pseudoephedrine sulfate, a sympathomimetic amine, and therefore should be used with caution in patients with diabetes and hyperthyroidism. Also use with caution in patients with prostatic hypertrophy or increased intraocular pressure, as urinary retention and narrow-angle glaucoma may occur [see Contraindications (4) ]. 5.3 Co-Administration with Monoamine Oxidase (MAO) Inhibitors CLARINEX-D 12 HOUR Extended Release Tablets should not be used in patients receiving monoamine oxidase (MAO) inhibitor therapy or within fourteen (14) days of stopping such treatment as an increase in blood pressure or hypertensive crisis, may occur [see Contraindications (4) and Drug Interactions (7.1) ]. 5.4 Hypersensitivity Reactions Hypersensitivity reactions including rash, pruritus, urticaria, edema, dyspnea, and anaphylaxis have been reported after administration of desloratadine a component of CLARINEX-D 12 HOUR Extended Release Tablets. If such a reaction occurs, therapy with CLARINEX-D 12 HOUR Extended Release Tablets should be stopped and alternative treatment should be considered [see Adverse Reactions (6.2) ]. 5.5 Renal Impairment CLARINEX-D 12 HOUR Extended Release Tablets should generally be avoided in patients with renal impairment [see Clinical Pharmacology (12.3) ]. 5.6 Hepatic Impairment CLARINEX-D 12 HOUR Extended Release Tablets should generally be avoided in patients with hepatic impairment [see Clinical Pharmacology (12.3) ].
Contraindications
4 CONTRAINDICATIONS CLARINEX-D 12 HOUR Extended Release Tablets are contraindicated in: Patients with hypersensitivity to any of its ingredients, or to loratadine [see Warnings and Precautions (5.4) and Adverse Reactions (6.2) ] Patients with narrow-angle glaucoma Patients with urinary retention Patients receiving monoamine oxidase (MAO) inhibitor therapy or within fourteen (14) days of stopping such treatment [see Drug Interactions (7.1) ] Patients with severe hypertension or severe coronary artery disease Hypersensitivity ( 4 ) Narrow-Angle Glaucoma ( 4 ) Urinary Retention ( 4 ) Patients Receiving MAO Inhibitors or within 14 days of stopping such treatment ( 4 ) Severe hypertension or severe coronary artery disease. ( 4 )
Overdose
10 OVERDOSAGE In the event of overdose, consider standard measures to remove any unabsorbed drug. Symptomatic and supportive treatment is recommended. Desloratadine and 3-hydroxydesloratadine are not eliminated by hemodialysis. 10.1 Desloratadine Information regarding acute overdosage with desloratadine is limited to experience from post-marketing adverse event reports and from clinical trials conducted during the development of the CLARINEX product. In the reported cases of overdose, there were no significant adverse events that were attributed to desloratadine. In a dose-ranging trial, at doses of 10 mg and 20 mg/day, somnolence was reported. In another study, no clinically relevant adverse events were reported in normal male and female volunteers who were given single daily doses of CLARINEX 45 mg for 10 days [see Clinical Pharmacology (12.2) ]. 10.2 Sympathomimetics In large doses, sympathomimetics such as pseudoephedrine may give rise to giddiness, headache, nausea, vomiting, sweating, thirst, tachycardia, precordial pain, palpitations, difficulty in micturition, muscle weakness and tenseness, anxiety, restlessness, and insomnia. Many patients can present a toxic psychosis with delusions and hallucinations. Some may develop cardiac arrhythmias, circulatory collapse, convulsions, coma, and respiratory failure.
Drug interactions
7 DRUG INTERACTIONS No specific interaction studies have been conducted with CLARINEX-D 12 HOUR Extended Release Tablets. Monoamine Oxidase (MAO) Inhibitors: Do not use. May potentiate the effect of pseudoephedrine on vascular system. ( 7.1 ) 7.1 Monoamine Oxidase Inhibitors CLARINEX-D 12 HOUR Extended Release Tablets should not be used in patients receiving monoamine oxidase (MAO) inhibitor therapy or within fourteen (14) days of stopping such treatment because the action of pseudoephedrine a component of CLARINEX-D 12 HOUR Extended Release tablets on the vascular system may be potentiated by these agents [see Contraindications (4) and Warnings and Precautions (5.3) ]. 7.2 Beta-Adrenergic Blocking Agents The antihypertensive effects of beta-adrenergic blocking agents, methyldopa, and reserpine, may be reduced by sympathomimetics such as pseudoephedrine. Exercise caution when using CLARINEX-D 12 HOUR Extended Release Tablets with these agents. 7.3 Digitalis Increased ectopic pacemaker activity can occur when pseudoephedrine is used concomitantly with digitalis. Exercise caution when using CLARINEX-D 12 HOUR Extended Release Tablets with these agents. 7.4 Inhibitors of Cytochrome P450 3A4 In controlled clinical studies co-administration of desloratadine with ketoconazole, erythromycin, or azithromycin resulted in increased plasma concentrations of desloratadine and 3-hydroxydesloratadine but there were no clinically relevant changes in the safety profile of desloratadine [see Clinical Pharmacology (12.3) ]. 7.5 Fluoxetine In controlled clinical studies co-administration of desloratadine with fluoxetine, a selective serotonin reuptake inhibitor (SSRI), resulted in increased plasma concentrations of desloratadine and 3-hydroxydesloratadine but there were no clinically relevant changes in the safety profile of desloratadine [see Clinical Pharmacology (12.3) ]. 7.6 Cimetidine In controlled clinical studies co-administration of desloratadine with cimetidine a histamine H 2 -receptor antagonist resulted in increased plasma concentrations of desloratadine and 3-hydroxydesloratadine but there were no clinically relevant changes in the safety profile of desloratadine [see Clinical Pharmacology (12.3) ].
Uses
1 INDICATIONS AND USAGE CLARINEX-D 12 HOUR is a combination product containing a histamine-1 (H1) receptor antagonist and an alpha adrenergic agonist indicated for: Relief of nasal and non-nasal symptoms of seasonal allergic rhinitis, including nasal congestion, in adults and adolescents 12 years of age and older. ( 1.1 ) 1.1 Seasonal Allergic Rhinitis CLARINEX-D ® 12 HOUR Extended Release Tablets is indicated for the relief of the nasal and non-nasal symptoms of seasonal allergic rhinitis, including nasal congestion, in adults and adolescents 12 years of age and older. CLARINEX-D 12 HOUR Extended Release Tablets should be administered when the antihistaminic properties of desloratadine and the nasal decongestant properties of pseudoephedrine are desired [see Clinical Pharmacology (12) ].
Dosage forms & strengths
2 DOSAGE AND ADMINISTRATION Administer CLARINEX-D 12 HOUR Extended Release Tablet by the oral route only. Do not break, chew, or crush the tablet. Swallow the tablet whole. For oral use only ( 2 ) Adults and adolescents 12 years of age and over: The recommended dose of CLARINEX-D 12 HOUR Extended Release Tablets is one tablet twice a day. ( 2.1 ) 2.1 Adults and Adolescents 12 years of Age and Over The recommended dose of CLARINEX-D 12 HOUR Extended Release Tablets is 1 tablet twice a day, administered approximately 12 hours apart and with or without a meal. Higher doses or increased dosing frequency of CLARINEX-D 12 HOUR Extended Release Tablets have not demonstrated increased effectiveness. Do not exceed the recommended dose as desloratadine and pseudoephedrine, the active components of CLARINEX-D 12 HOUR Extended Release Tablets have been associated with adverse effects at higher doses [see Overdosage (10.1) and (10.2) ].