Comparative Pharmacology
Head-to-head clinical analysis: EPITOL versus VIGABATRIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: EPITOL versus VIGABATRIN.
EPITOL vs VIGABATRIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Carbamazepine stabilizes the inactivated state of voltage-gated sodium channels, thereby inhibiting high-frequency repetitive firing of action potentials and reducing synaptic transmission.
Irreversibly inhibits GABA transaminase, increasing brain GABA levels.
Carbamazepine, immediate-release: initial 200 mg orally twice daily; increase by 200 mg/day at weekly intervals. Typical maintenance: 800-1200 mg/day in 2-3 divided doses. Extended-release: initial 200 mg orally twice daily; maintenance 400-600 mg twice daily.
Adults: 500 mg orally twice daily; may increase by 500 mg/day every 7 days up to 1500 mg twice daily. For refractory complex partial seizures, maximum 3000 mg/day.
None Documented
None Documented
Clinical Note
moderateVigabatrin + Venlafaxine
"The risk or severity of adverse effects can be increased when Vigabatrin is combined with Venlafaxine."
Clinical Note
moderateVigabatrin + Nefazodone
"The risk or severity of adverse effects can be increased when Vigabatrin is combined with Nefazodone."
Clinical Note
moderateVigabatrin + Stiripentol
"The risk or severity of adverse effects can be increased when Vigabatrin is combined with Stiripentol."
Clinical Note
moderateVigabatrin + Clomipramine
20-40 hours (mean 30 hours); linear kinetics at therapeutic doses; decreased with concomitant enzyme-inducing drugs
5-8 hours in young adults; 12-17 hours in elderly; prolonged with renal impairment.
Renal: 70% (as glucuronide conjugates and other metabolites), Fecal: 30% (unchanged and metabolites)
Renal: ~80% unchanged in urine; fecal: <5%.
Category C
Category A/B
Anticonvulsant
Anticonvulsant
"The risk or severity of adverse effects can be increased when Vigabatrin is combined with Clomipramine."