Comparative Pharmacology
Head-to-head clinical analysis: CHLORPHENIRAMINE MALEATE versus CLARINEX D 12 HOUR.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CHLORPHENIRAMINE MALEATE versus CLARINEX D 12 HOUR.
CHLORPHENIRAMINE MALEATE vs CLARINEX-D 12 HOUR
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
H1 receptor antagonist; competitively blocks histamine at H1 receptors, preventing histamine-mediated symptoms such as vasodilation, increased capillary permeability, and smooth muscle contraction.
Desloratadine is a long-acting tricyclic histamine antagonist selective for H1-receptor with additional anti-inflammatory properties. Pseudoephedrine is a sympathomimetic amine that acts as a vasoconstrictor via alpha-adrenergic receptors.
4 mg orally every 4-6 hours, not to exceed 24 mg per day; or 10-20 mg intramuscularly or intravenously as a single dose, not to exceed 40 mg per day.
1 tablet (5 mg desloratadine / 120 mg pseudoephedrine) orally every 12 hours.
None Documented
None Documented
Clinical Note
moderateDexchlorpheniramine maleate + Haloperidol
"The metabolism of Haloperidol can be decreased when combined with Dexchlorpheniramine maleate."
Clinical Note
moderateDexchlorpheniramine maleate + Sulfisoxazole
"The metabolism of Sulfisoxazole can be decreased when combined with Dexchlorpheniramine maleate."
Clinical Note
moderateDexchlorpheniramine maleate + Erythromycin
"The metabolism of Erythromycin can be decreased when combined with Dexchlorpheniramine maleate."
Clinical Note
moderateTerminal elimination half-life: 12-15 hours (prolonged in hepatic impairment).
Desloratadine: 27 hours (terminal), allows once-daily dosing; pseudoephedrine: 4-6 hours (prolonged in alkaline urine).
Renal: ~50% as metabolites; Fecal: negligible; Biliary: minor.
Desloratadine: 40.2% renal (unchanged and metabolites), 41.7% fecal; pseudoephedrine: 70-90% renal (unchanged).
Category C
Category C
Antihistamine
Antihistamine/Decongestant Combination
Dexchlorpheniramine maleate + Cyclosporine
"The metabolism of Cyclosporine can be decreased when combined with Dexchlorpheniramine maleate."