Comparative Pharmacology
Head-to-head clinical analysis: BRIVARACETAM versus CELONTIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BRIVARACETAM versus CELONTIN.
BRIVARACETAM vs CELONTIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Brivaracetam is a high-affinity synaptic vesicle glycoprotein 2A (SV2A) ligand, binding to SV2A with 15- to 30-fold higher affinity than levetiracetam. It modulates neurotransmitter release, reducing neuronal excitability. It also inhibits voltage-gated sodium channels at clinically relevant concentrations.
Increases levels of gamma-aminobutyric acid (GABA) in the central nervous system, possibly by inhibiting GABA transaminase or enhancing GABA release; also reduces calcium influx into neurons, stabilizing neuronal membranes.
50 mg orally twice daily, with or without food. May increase to 100 mg twice daily based on tolerability and efficacy. Maximum 200 mg twice daily.
300 mg orally three times daily, increased by 300 mg every 3-4 days as tolerated; usual maintenance dose 900-2400 mg/day in divided doses.
None Documented
None Documented
Clinical Note
moderateBrivaracetam + Sulfisoxazole
"The metabolism of Sulfisoxazole can be decreased when combined with Brivaracetam."
Clinical Note
moderateBrivaracetam + Erythromycin
"The metabolism of Erythromycin can be decreased when combined with Brivaracetam."
Clinical Note
moderateBrivaracetam + Cyclosporine
"The metabolism of Cyclosporine can be decreased when combined with Brivaracetam."
Clinical Note
moderateBrivaracetam + Fluconazole
Terminal elimination half-life is approximately 9 hours in adults with normal renal function. In patients with severe renal impairment (CrCl <30 mL/min), half-life is prolonged to about 20-30 hours, requiring dose adjustment.
Terminal elimination half-life: 40-60 hours in adults, 30-45 hours in children; prolonged liver disease or renal impairment may increase half-life.
Approximately 95% of the dose is excreted renally, with about 8-12% as unchanged drug and the remainder as metabolites (primarily by hydrolysis to the carboxylic acid metabolite). Fecal excretion accounts for less than 1%.
Renal: approximately 40-60% as unchanged drug; hepatic metabolism accounts for the remainder, with metabolites excreted renally.
Category C
Category C
Anticonvulsant
Anticonvulsant
"The metabolism of Fluconazole can be decreased when combined with Brivaracetam."