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药品详细

Butabarbital(仲丁巴比妥)

化学结构式图
中文名
仲丁巴比妥
英文名
Butabarbital
分子式
C10H16N2O3
化学名
5-(butan-2-yl)-5-ethyl-1,3-diazinane-2,4,6-trione
分子量
Average: 212.2456
Monoisotopic: 212.116092388
CAS号
125-40-6
ATC分类
药物类型
small molecule
阶段
illicit, approved
商品名
同义名
基本介绍

Butabarbital (trade name Butisol) is a prescription barbiturate sleep aid. Butabarbital has a particularly fast onset of effects and short duration of action compared to other barbiturates, which makes it useful for certain applications such as treating severe insomnia and relieving anxiety before surgical procedures; however it is also relatively dangerous particularly when combined with alcohol, and so is now rarely used, although it is still prescribed in some Eastern European and South American countries. Its short duration of action gives butabarbital a high abuse potential, comparable to secobarbital. [Wikipedia]

生产厂家
  • Alpharma us pharmaceuticals division
  • Cm bundy co
  • Halsey drug co inc
  • Ivax pharmaceuticals inc sub teva pharmaceuticals usa
  • Lannett co inc
  • Marshall pharmacal corp
  • Meda pharmaceuticals inc
  • Medpointe pharmaceuticals medpointe healthcare inc
  • Sandoz inc
  • Solvay pharmaceuticals
  • Teva pharmaceuticals usa inc
  • Watson laboratories inc
  • West ward pharmaceutical corp
  • Whiteworth towne paulsen inc
  • Wockhardt eu operations (swiss) ag
封装厂家
参考
Synthesis Reference Not Available
General Reference Not Available
剂型
规格
化合物类型
Type small molecule
Classes
  • Barbiturates
Substructures
  • Barbiturates
  • Carbonyl Compounds
  • Carboxylic Acids and Derivatives
  • Amino Ketones
  • Ureas and Derivatives
  • Pyrimidines and Derivatives
  • Heterocyclic compounds
  • Carboxamides and Derivatives
适应症
药理
Indication For short-term treatment of insomnia and anxiety disorders
Pharmacodynamics Butabarbital, a barbiturate, is used for the treatment of short term insomnia. It belongs to a group of medicines called central nervous system (CNS) depressants that induce drowsiness and relieve tension or nervousness. Little analgesia is conferred by barbiturates; their use in the presence of pain may result in excitation.
Mechanism of action Butabarbital binds at a distinct binding site associated with a Cl- ionopore at the GABAA receptor, increasing the duration of time for which the Cl- ionopore is open. The post-synaptic inhibitory effect of GABA in the thalamus is, therefore, prolonged. All of these effects are associated with marked decreases in GABA-sensitive neuronal calcium conductance (gCa). The net result of barbiturate action is acute potentiation of inhibitory GABAergic tone. Barbiturates also act through potent (if less well characterized) and direct inhibition of excitatory AMPA-type glutamate receptors, resulting in a profound suppression of glutamatergic neurotransmission.
Absorption Not Available
Volume of distribution Not Available
Protein binding Not Available
Metabolism
Not Available
Route of elimination Barbiturates are metabolized primarily by the hepatic microsomal enzyme system, and most metabolic products are excreted in the urine.
Half life Not Available
Clearance Not Available
Toxicity Signs of overdose include confusion (severe), decrease in or loss of reflexes, drowsiness (severe), fever, irritability (continuing), low body temperature, poor judgment, shortness of breath or slow or troubled breathing, slow heartbeat, slurred speech, staggering, trouble in sleeping, unusual movements of the eyes, weakness (severe).
Affected organisms
  • Humans and other mammals
Pathways Not Available
理化性质
Properties
State solid
Experimental Properties
Property Value Source
melting point 166.5 °C PhysProp
water solubility 1360 mg/L Not Available
logP 1.65 WONG,O & MCKEOWN,RH (1988)
Predicted Properties
Property Value Source
water solubility 1.39e+00 g/l ALOGPS
logP 1.7 ALOGPS
logP 1.45 ChemAxon
logS -2.2 ALOGPS
pKa (strongest acidic) 8.48 ChemAxon
physiological charge 0 ChemAxon
hydrogen acceptor count 3 ChemAxon
hydrogen donor count 2 ChemAxon
polar surface area 75.27 ChemAxon
rotatable bond count 3 ChemAxon
refractivity 53.4 ChemAxon
polarizability 21.41 ChemAxon
药物相互作用
Drug Interaction
Acenocoumarol Barbiturates like butabarbital may increase the metabolism of Vitamin K Antagonists like acenocoumarol. onitor for decreased therapeutic effects of oral anticoagulants if a barbiturate is initiated/dose increased (anticoagulant dosage increases of 30% to 60% may be needed based on monitored PT), or increased effects if a barbiturate is discontinued/dose decreased. An increased frequency of PT monitoring should be considered for the period immediately following barbiturate initiation/dosage changes.
Aminophylline The barbiturate, butabarbital, decreases the effect of aminophylline.
Amitriptyline Barbiturates like butabarbital may increase the metabolism of tricyclic antidepressants like amitriptyline. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
Amoxapine Barbiturates like butabarbital may increase the metabolism of tricyclic antidepressants like amoxipine. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
Bendamustine Decreases levels of bendamustine by affecting CYP1A2 hepatic enzyme metabolism. May increase concentrations of active metabolites.
Betamethasone The barbiturate, butabarbital, may decrease the effect of the corticosteroid, betamethasone.
Clomifene The enzyme inducer, butabarbital, decreases the effect of the hormone agent, clomifene.
Clomipramine Barbiturates like butabarbital may increase the metabolism of tricyclic antidepressants like clomipramine. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
Conjugated Estrogens The enzyme inducer, butabarbital, decreases the effect of the hormone agent, conjugated estrogens.
Cyclosporine The barbiturate, butabarbital, increases the effect of cyclosporine.
Desipramine Barbiturates like butabarbital may increase the metabolism of tricyclic antidepressants like desipramine. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
Dexamethasone The barbiturate, butabarbital, may decrease the effect of the corticosteroid, dexamethasone.
Diethylstilbestrol The enzyme inducer, butabarbital, decreases the effect of the hormone agent, diethylstilbestrol.
Disopyramide arbiturates may increase the metabolism of Disopyramide. Monitor for decreased therapeutic effects of disopyramide if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased.
Doxepin Barbiturates like butabarbital may increase the metabolism of tricyclic antidepressants like doxepin. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
Doxycycline The anticonvulsant, butabarbital, decreases the effect of doxycycline.
Droperidol Droperidol may enhance the CNS depressant effect of CNS Depressants like butabarbital. Consider dose reductions of droperidol or of other CNS agents (e.g., opioids, barbiturates) with concomitant use.
Eltrombopag Affects hepatic CYP1A2 metabolism, will decrease effect/level of eltrombopag. Affects hepatic CYP2C9/10 metabolism, will decrease effect/level of eltrombopag.
Estradiol The enzyme inducer, butabarbital, decreases the effect of the hormone agent, estradiol.
Ethinyl Estradiol This product may cause a slight decrease of contraceptive effect
Felodipine The barbiturate, butabarbital, decreases the effect of felodipine.
Fludrocortisone The barbiturate, butabarbital, may decrease the effect of the corticosteroid, fludrocortisone.
Folic Acid Folic acid decreases the effect of anticonvulsant, butabarbital.
Gefitinib The CYP3A4 inducer, butabarbital, may decrease the serum concentration and therapeutic effects of gefitinib.
Griseofulvin The barbiturate, butabarbital, decreases the effect of griseofulvin.
Hydrocortisone The barbiturate, butabarbital, may decrease the effect of the corticosteroid, hydrocortisone.
Hydroxyzine Hydroxyzine may enhance the CNS depressant effect of barbiturates like butabarbital. Consider a decrease in the barbiturate dose, as appropriate, when used together with hydroxyzine. With concurrent use, monitor patients closely for excessive response to the combination.
Imipramine Barbiturates like butabarbital may increase the metabolism of tricyclic antidepressants like imipramine. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
Lamotrigine Barbiturates like butabarbital may decrease the serum concentration of lamotrigine. There are separate patient management guidelines for patients age 12 and under and for patients older than 12 years of age. Monitor for decreased serum concentrations/therapeutic effects of lamotrigine if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased.
Levonorgestrel Phenobarbital decreases the effect of levonorgestrel
Medroxyprogesterone The enzyme inducer, butabarbital, decreases the effect of the hormone agent, medroxyprogesterone.
Megestrol The enzyme inducer, butabarbital, decreases the effect of the hormone agent, megestrol.
Methadone The barbiturate, butabarbital, decreases the effect of methadone.
Metronidazole The barbiturate, butabarbital, decreases the effect of metronidazole.
Nifedipine The barbiturate, butabarbital, decreases the effect of the calcium channel blocker, nifedipine.
Norethindrone This product may cause a slight decrease of contraceptive effect
Nortriptyline Barbiturates like butabarbital may increase the metabolism of tricyclic antidepressants like nortriptyline. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
Oxtriphylline The barbiturate, butabarbital, decreases the effect of oxtriphylline.
Prednisolone The barbiturate, butabarbital, may decrease the effect of the corticosteroid, prednisolone.
Prednisone The barbiturate, butabarbital, may decrease the effect of the corticosteroid, prednisone.
Protriptyline Barbiturates like butabarbital may increase the metabolism of tricyclic antidepressants like protriptyline. Monitor for decreased therapeutic effects of tricyclic antidepressants if a barbiturate is initiated/dose increased, or increased effects if a barbiturate is discontinued/dose decreased. The tricyclic antidepressant dosage will likely need to be increased during concomitant barbiturate therapy, and reduced upon barbiturate discontinuation.
Quinidine The anticonvulsant, butabarbital, decreases the effect of quinidine.
Teniposide Barbiturates like butabarbital may decrease the serum concentration of Teniposide. arbiturates may decrease the serum concentration of Teniposide.
Theophylline The barbiturate, butabarbital, decreases the effect of theophylline.
Triamcinolone The barbiturate, butabarbital, may decrease the effect of the corticosteroid, triamcinolone.
Trimipramine The barbiturate, Butabarbital, may increase the metabolism and clearance of Trimipramine. Monitor for changes in the therapeutics and adverse effects of Trimipramine if Butabarbital is initiated, discontinued or dose changed. Dose adjustments of Trimipramine may be required.
Triprolidine The CNS depressants, Triprolidine and Butabarbital, may increase adverse/toxic effects due to additivity. Monitor for increased CNS depressant effects during concomitant therapy.
Verapamil Butabarbital, a CYP3A4 inducer, may increase the serum concentration of Verapamil, a CYP3A4 substrate. Monitor for changes in the therapeutic/adverse effects of Verapamil if Butabarbital is initiated, discontinued or dose changed.
Voriconazole Butabarbital may reduce serum concentrations and efficacy of voriconazole. Concomitant voriconazole and long-acting barbiturates therapy is contraindicated.
Warfarin Butabarbital may decrease the serum concentration of warfarin by increasing its metabolism. Monitor for changes in the therapeutic and adverse effects of warfarin if butabarbital is initiated, discontinued or dose changed.
食物相互作用
Not Available

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