Comparative Pharmacology
Head-to-head clinical analysis: PREGABALIN versus ZONISADE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: PREGABALIN versus ZONISADE.
PREGABALIN vs ZONISADE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Binds to the alpha2-delta subunit of voltage-gated calcium channels, reducing calcium influx and decreasing release of excitatory neurotransmitters (e.g., glutamate, norepinephrine, substance P).
Zonisamide is a sulfonamide anticonvulsant. Its precise mechanism of action is unknown, but it is believed to inhibit voltage-sensitive sodium channels and reduce T-type calcium currents, thereby stabilizing neuronal membranes and suppressing neuronal hypersynchronization. It may also modulate GABA and glutamate neurotransmission.
Initial: 75 mg orally twice daily; may increase to 150 mg twice daily within 1 week; maximum: 600 mg/day in divided doses.
100-200 mg orally every 8 hours; maximum 600 mg/day.
None Documented
None Documented
Clinical Note
moderatePregabalin + Fluticasone propionate
"The therapeutic efficacy of Fluticasone propionate can be increased when used in combination with Pregabalin."
Clinical Note
moderatePregabalin + Haloperidol
"The therapeutic efficacy of Haloperidol can be increased when used in combination with Pregabalin."
Clinical Note
moderatePregabalin + Erythromycin
"The metabolism of Erythromycin can be decreased when combined with Pregabalin."
Clinical Note
moderatePregabalin + Fluconazole
Terminal elimination half-life is approximately 6.3 hours. In patients with renal impairment, half-life is prolonged (up to 48 hours in anuria). Requires dose adjustment based on creatinine clearance.
Terminal elimination half-life: 63-69 hours in adults; allows once-daily dosing; steady-state achieved in 14-21 days
Primarily renal excretion as unchanged drug (92-99% of dose). Approximately 0.1% is metabolized. No biliary or fecal elimination of significance.
Renal: approximately 62% (35% unchanged, 27% as glucuronide conjugate); fecal: 3%; biliary: negligible
Category A/B
Category C
Anticonvulsant
Anticonvulsant
"The serum concentration of Fluconazole can be increased when it is combined with Pregabalin."