Comparative Pharmacology
Head-to-head clinical analysis: AMBODRYL versus CLARINEX D 12 HOUR.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMBODRYL versus CLARINEX D 12 HOUR.
AMBODRYL vs CLARINEX-D 12 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 selective for H1-receptor with additional anti-inflammatory properties. Pseudoephedrine is a sympathomimetic amine that acts as a vasoconstrictor via alpha-adrenergic 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 every 12 hours.
None Documented
None Documented
Terminal elimination half-life 12-15 hours in adults; prolonged to 20-30 hours in hepatic impairment.
Desloratadine: 27 hours (terminal), allows once-daily dosing; pseudoephedrine: 4-6 hours (prolonged in alkaline urine).
Primarily renal (70-80% as metabolites, 20-30% unchanged); biliary/fecal excretion accounts for 15-20%.
Desloratadine: 40.2% renal (unchanged and metabolites), 41.7% fecal; pseudoephedrine: 70-90% renal (unchanged).
Category C
Category C
Antihistamine
Antihistamine/Decongestant Combination