Comparative Pharmacology
Head-to-head clinical analysis: CEREBYX versus LACOSAMIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CEREBYX versus LACOSAMIDE.
CEREBYX vs LACOSAMIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Fosphenytoin is a prodrug of phenytoin, which stabilizes neuronal membranes by blocking voltage-gated sodium channels, thereby inhibiting repetitive firing of action potentials.
Selectively enhances slow inactivation of voltage-gated sodium channels, stabilizing hyperexcitable neuronal membranes and inhibiting repetitive neuronal firing.
Loading dose: 15-20 mg PE/kg IV/IM (max 1500 mg PE); maintenance: 4-6 mg PE/kg/day IV/IM divided q12h or q8h. Switch to oral phenytoin at equivalent dose.
Oral or IV: 50 mg twice daily initially; increase by 50 mg twice daily weekly to maintenance 100-200 mg twice daily. Maximum 200 mg twice daily.
None Documented
None Documented
Clinical Note
moderateLacosamide + Sulfisoxazole
"The serum concentration of Sulfisoxazole can be increased when it is combined with Lacosamide."
Clinical Note
moderateLacosamide + Fluconazole
"The serum concentration of Fluconazole can be increased when it is combined with Lacosamide."
Clinical Note
moderateLacosamide + Ketoconazole
"The serum concentration of Ketoconazole can be increased when it is combined with Lacosamide."
Clinical Note
moderateLacosamide + Delavirdine
The terminal elimination half-life of fosphenytoin (converted to phenytoin) is approximately 15 hours (range 10-20 hours) in adults with normal hepatic function; after conversion, phenytoin half-life is dose-dependent and averages 22 hours (range 7-42 hours) at therapeutic concentrations.
Terminal elimination half-life is approximately 13 hours (range 12–16 hours) in adults. Steady state achieved after 3 days with BID dosing.
Renal excretion of unchanged drug and metabolites accounts for approximately 80% of the dose; about 20% is eliminated in feces via biliary excretion.
Renal: approximately 95% (40% unchanged, remainder as O-desmethyl metabolite). Fecal: <5%.
Category C
Category C
Anticonvulsant
Anticonvulsant
"The serum concentration of Delavirdine can be increased when it is combined with Lacosamide."