Comparative Pharmacology
Head-to-head clinical analysis: EMEND versus MEZOFY.
Head-to-head clinical analysis: EMEND versus MEZOFY.
EMEND vs MEZOFY
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Selective substance P/neurokinin 1 (NK1) receptor antagonist, which inhibits the binding of substance P in the emetic pathway.
MEZOFY is a selective serotonin reuptake inhibitor (SSRI) that potentiates serotonergic activity in the CNS by inhibiting the reuptake of serotonin at the presynaptic neuronal membrane.
125 mg orally once 1 hour before chemotherapy; then 80 mg orally once daily on Days 2 and 3.
MEZOFY (mexiletine) 200 mg orally every 8 hours; may increase to 300 mg every 8 hours if needed.
None Documented
None Documented
9–13 hours (terminal) in healthy adults; clinically, this supports once-daily dosing. In patients with severe renal impairment (CrCl <30 mL/min), half-life is prolonged to ~16 hours.
Terminal half-life: 8-12 hours (mean 10 h); prolonged in renal impairment (up to 24 h in CrCl <30 mL/min)
Primarily metabolized; ~5% unchanged in urine, ~57% in feces as metabolites, ~32% in urine as metabolites. Renal elimination of parent drug is minimal.
Renal: 60% unchanged; biliary/fecal: 25% as metabolites; 15% other
Category C
Category C
Antiemetic
Antiemetic/Antivertigo