Comparative Pharmacology
Head-to-head clinical analysis: AMBODRYL versus CLARINEX D 24 HOUR.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMBODRYL versus CLARINEX D 24 HOUR.
AMBODRYL vs CLARINEX D 24 HOUR
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Antihistamine (H1-receptor antagonist) with anticholinergic and sedative properties.
Desloratadine is a long-acting tricyclic histamine antagonist with selective peripheral H1-receptor antagonist activity. Loratadine is a long-acting antihistamine that selectively antagonizes peripheral H1-receptors.
10-20 mg intramuscularly or intravenously every 4-6 hours as needed, up to a maximum of 80 mg/day.
1 tablet (5 mg desloratadine/120 mg pseudoephedrine) orally once daily
None Documented
None Documented
Terminal elimination half-life 12-15 hours in adults; prolonged to 20-30 hours in hepatic impairment.
Desloratadine: terminal t1/2 27 hours (range 20-50h) supporting once-daily dosing. Pseudoephedrine: t1/2 5-8 hours (up to 16h in alkaline urine).
Primarily renal (70-80% as metabolites, 20-30% unchanged); biliary/fecal excretion accounts for 15-20%.
Desloratadine: ~87% excreted as metabolites (41% urine, 43% feces), <2% unchanged. Pseudoephedrine: ~70-90% excreted unchanged in urine.
Category C
Category C
Antihistamine
Antihistamine/Decongestant Combination