Comparative Pharmacology
Head-to-head clinical analysis: BELDIN versus CLARINEX D 12 HOUR.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BELDIN versus CLARINEX D 12 HOUR.
BELDIN vs CLARINEX-D 12 HOUR
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Selective histamine H1 receptor antagonist; inhibits histamine-mediated allergic and inflammatory responses.
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.
1 capsule (200 mg) orally every 12 hours.
1 tablet (5 mg desloratadine / 120 mg pseudoephedrine) orally every 12 hours.
None Documented
None Documented
Terminal half-life: 8-12 hours (average 10 hours); prolonged in hepatic impairment (up to 24 h) and severe renal impairment (up to 18 h).
Desloratadine: 27 hours (terminal), allows once-daily dosing; pseudoephedrine: 4-6 hours (prolonged in alkaline urine).
Renal: 30-50% unchanged; hepatic metabolism: 50-70% (CYP3A4); biliary/fecal: 10-20%.
Desloratadine: 40.2% renal (unchanged and metabolites), 41.7% fecal; pseudoephedrine: 70-90% renal (unchanged).
Category C
Category C
Antihistamine
Antihistamine/Decongestant Combination