Comparative Pharmacology
Head-to-head clinical analysis: TELDRIN versus XYZAL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: TELDRIN versus XYZAL.
TELDRIN vs XYZAL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
TELDRIN contains loratadine and pseudoephedrine. Loratadine is a long-acting tricyclic antihistamine with selective peripheral H1-receptor antagonism. Pseudoephedrine is a sympathomimetic amine that acts as a decongestant by stimulating alpha-adrenergic receptors in the respiratory tract mucosa, causing vasoconstriction.
Levocetirizine is a selective histamine H1-receptor antagonist; it inhibits the histamine-mediated responses in allergic conditions.
1-2 mg orally twice daily; maximum 4 mg/day.
5 mg orally once daily in the evening.
None Documented
None Documented
Terminal half-life: 9-12 hours (range 8-14) in healthy adults; prolonged in renal impairment.
Terminal elimination half-life is approximately 7 hours in healthy adults; prolonged to 8–11 hours in elderly and in renal impairment.
Renal: 55-60% unchanged; fecal: 35-40%; minor biliary elimination.
Approximately 84% of a dose is excreted renally as unchanged drug; 12% in feces via biliary elimination.
Category C
Category C
Antihistamine
Antihistamine