Comparative Pharmacology
Head-to-head clinical analysis: BUTABARB versus NEMBUTAL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: BUTABARB versus NEMBUTAL.
BUTABARB vs NEMBUTAL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Barbiturate that binds to GABA-A receptor subunits, potentiating GABAergic inhibition by increasing chloride ion conductance and reducing neuronal excitability.
Barbiturate that enhances GABA-A receptor activity, increasing chloride ion conductance and neuronal hyperpolarization. At high doses, has direct inhibitory effects on excitatory AMPA and kainate receptors.
15-30 mg orally 3-4 times daily as needed; maximum 200 mg/day. IV/IM: 50-200 mg for sedation.
Induction of anesthesia: 50-120 mg IV as a single dose. Maintenance of anesthesia: additional doses of 20-40 mg IV as needed. For sedation (preoperative): 100-200 mg IM or 1-5 mg/kg IV 1-1.5 hours before procedure. For status epilepticus: loading dose of 5-15 mg/kg IV slow push, then 1-5 mg/kg/h IV infusion.
None Documented
None Documented
Clinical Note
moderateButabarbital + Fluticasone propionate
"The risk or severity of adverse effects can be increased when Butabarbital is combined with Fluticasone propionate."
Clinical Note
moderateButabarbital + Haloperidol
"The risk or severity of adverse effects can be increased when Butabarbital is combined with Haloperidol."
Clinical Note
moderateButabarbital + Clemastine
"The risk or severity of adverse effects can be increased when Butabarbital is combined with Clemastine."
Clinical Note
moderateTerminal elimination half-life is 30-60 hours (mean ~40 hours) in adults with normal renal and hepatic function. Longer in elderly or patients with liver disease.
Terminal elimination half-life is 40-120 hours (mean ~80 hours). The prolonged half-life contributes to accumulation with repeated dosing and residual sedation.
Renal excretion of unchanged drug and metabolites. Approximately 70-80% of a dose is eliminated in urine as metabolites (hydroxy and glucuronide conjugates) and <5% as parent drug. Minimal biliary/fecal elimination (<5%).
Renal elimination of unchanged drug accounts for approximately 30-35% of a dose; the remainder is hepatically metabolized. Less than 5% is excreted unchanged in feces.
Category C
Category C
Barbiturate
Barbiturate
Butabarbital + Venlafaxine
"The risk or severity of adverse effects can be increased when Butabarbital is combined with Venlafaxine."