Comparative Pharmacology
Head-to-head clinical analysis: HYDRAMINE versus LEVOCETIRIZINE DIHYDROCHLORIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: HYDRAMINE versus LEVOCETIRIZINE DIHYDROCHLORIDE.
HYDRAMINE vs LEVOCETIRIZINE DIHYDROCHLORIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Antagonist of histamine H1 receptors, preventing histamine-mediated responses such as vasodilation, bronchoconstriction, and increased capillary permeability.
Levocetirizine is a selective antagonist of peripheral histamine H1 receptors, blocking histamine-induced allergic responses by inhibiting H1 receptor activation in the gastrointestinal tract, blood vessels, and respiratory tract.
50-100 mg IV/IM every 4-6 hours, maximum 400 mg per day. Also available as 50 mg oral tablets.
5 mg orally once daily in the evening.
None Documented
None Documented
Terminal elimination half-life 5.7 hours, range 4.2-7.7 hours; prolonged in hepatic impairment (up to 15 hours in cirrhosis)
Clinical Note
moderateDiphenhydramine + Deferasirox
"The serum concentration of Deferasirox can be increased when it is combined with Diphenhydramine."
Clinical Note
moderateDiphenhydramine + Fluticasone propionate
"The risk or severity of adverse effects can be increased when Diphenhydramine is combined with Fluticasone propionate."
Clinical Note
moderateDiphenhydramine + Tenofovir disoproxil
"The metabolism of Tenofovir disoproxil can be decreased when combined with Diphenhydramine."
Clinical Note
moderateTerminal elimination half-life: 7-11 hours in adults. Clinically, this supports once-daily dosing; may be prolonged in renal impairment (creatinine clearance <30 mL/min).
Primarily renal (95%) as metabolites; <5% unchanged; 5% fecal
Renal: 85% as unchanged drug (70%) and metabolites (15%); fecal: 13%; biliary: minimal (<2%).
Category C
Category A/B
Antihistamine
Antihistamine
Diphenhydramine + Sulfisoxazole
"The metabolism of Sulfisoxazole can be decreased when combined with Diphenhydramine."