Comparative Pharmacology
Head-to-head clinical analysis: CLARINEX D 12 HOUR versus CLARITIN HIVES RELIEF.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CLARINEX D 12 HOUR versus CLARITIN HIVES RELIEF.
CLARINEX-D 12 HOUR vs CLARITIN HIVES RELIEF
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
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.
Selective inverse agonist at histamine H1 receptors, blocking histamine-mediated effects in allergic reactions.
1 tablet (5 mg desloratadine / 120 mg pseudoephedrine) orally every 12 hours.
10 mg orally once daily
None Documented
None Documented
Desloratadine: 27 hours (terminal), allows once-daily dosing; pseudoephedrine: 4-6 hours (prolonged in alkaline urine).
8.4 hours (range 3-20 hours) for loratadine; 28 hours (range 8.8-92 hours) for active metabolite desloratadine, allowing once-daily dosing.
Desloratadine: 40.2% renal (unchanged and metabolites), 41.7% fecal; pseudoephedrine: 70-90% renal (unchanged).
Renal: ~40% as metabolites, <1% unchanged; Fecal: ~40%; Biliary: minor contribution.
Category C
Category C
Antihistamine/Decongestant Combination
Antihistamine