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Details

Stereochemistry RACEMIC
Molecular Formula 2C11H17N2O3.Ca
Molecular Weight 490.607
Optical Activity ( + / - )
Defined Stereocenters 0 / 4
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PENTOBARBITAL CALCIUM

SMILES

[Ca++].CCCC(C)C1(CC)C(=O)NC(=O)[N-]C1=O.CCCC(C)C2(CC)C(=O)NC(=O)[N-]C2=O

InChI

InChIKey=VBJLHIJEIVBIHF-UHFFFAOYSA-L
InChI=1S/2C11H18N2O3.Ca/c2*1-4-6-7(3)11(5-2)8(14)12-10(16)13-9(11)15;/h2*7H,4-6H2,1-3H3,(H2,12,13,14,15,16);/q;;+2/p-2

HIDE SMILES / InChI
Pentobarbital belongs to the class of a short-acting barbiturate is used as sedatives, hypnotics, for the short-term treatment of insomnia, since they appear to lose their effectiveness for sleep induction and sleep maintenance after 2 weeks; preanesthetics and anticonvulsant, in anesthetic doses, in the emergency control of certain acute convulsive episodes, e.g., those associated with status epilepticus, cholera, eclampsia, meningitis, tetanus, and toxic reactions to strychnine or local anesthetics. Pentobarbital 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.

Originator

Curator's Comment: # Volwiler and Tabern (Abbott Laboratories)

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
PENTOBARBITAL SODIUM

Approved Use

Parenteral a. Sedatives. b. Hypnotics, for the short-term treatment of insomnia, since they appear to lose their effectiveness for sleep induction and sleep maintenance after 2 weeks. c. Preanesthetics. d. Anticonvulsant, in anesthetic doses, in the emergency control of certain acute convulsive episodes, e.g., those associated with status epilepticus, cholera, eclampsia, meningitis, tetanus, and toxic reactions to strychnine or local anesthetics.

Launch Date

1.46396165E12
Primary
PENTOBARBITAL SODIUM

Approved Use

Parenteral a. Sedatives. b. Hypnotics, for the short-term treatment of insomnia, since they appear to lose their effectiveness for sleep induction and sleep maintenance after 2 weeks. c. Preanesthetics. d. Anticonvulsant, in anesthetic doses, in the emergency control of certain acute convulsive episodes, e.g., those associated with status epilepticus, cholera, eclampsia, meningitis, tetanus, and toxic reactions to strychnine or local anesthetics.

Launch Date

1.46396165E12
Primary
PENTOBARBITAL SODIUM

Approved Use

Parenteral a. Sedatives. b. Hypnotics, for the short-term treatment of insomnia, since they appear to lose their effectiveness for sleep induction and sleep maintenance after 2 weeks. c. Preanesthetics. d. Anticonvulsant, in anesthetic doses, in the emergency control of certain acute convulsive episodes, e.g., those associated with status epilepticus, cholera, eclampsia, meningitis, tetanus, and toxic reactions to strychnine or local anesthetics.

Launch Date

1.46396165E12
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
1.15 μg/mL
50 mg single, intravenous
dose: 50 mg
route of administration: Intravenous
experiment type: SINGLE
co-administered:
PENTOBARBITAL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE
food status: FASTED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
8.2 μg × h/mL
50 mg single, intravenous
dose: 50 mg
route of administration: Intravenous
experiment type: SINGLE
co-administered:
PENTOBARBITAL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE
food status: FASTED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
50 h
50 mg single, intravenous
dose: 50 mg
route of administration: Intravenous
experiment type: SINGLE
co-administered:
PENTOBARBITAL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE
food status: FASTED
Overview

Overview

CYP3A4CYP2C9CYP2D6hERG

OverviewOther

Other InhibitorOther SubstrateOther Inducer
Tox targets

Tox targets

TargetModalityActivityMetaboliteClinical evidence
Sourcing

Sourcing

Vendor/AggregatorIDURL
PubMed

PubMed

TitleDatePubMed
Prolonged vertical nystagmus after pentobarbital sodium administration.
1975 Jul
Functional characteristics and sites of gene expression of the alpha 1, beta 1, gamma 2-isoform of the rat GABAA receptor.
1990 Jul
Luteinizing hormone-releasing hormone neurons express Fos protein during the proestrous surge of luteinizing hormone.
1990 Jul
Ethanol sensitivity of the GABAA receptor expressed in Xenopus oocytes requires 8 amino acids contained in the gamma 2L subunit.
1991 Jul
The effect of pentobarbital anesthesia on the autonomic nervous system control of heart rate during baroreceptor activation.
1991 Nov
Amyloid precursor protein mRNA encoding the Kunitz protease inhibitor domain is increased by kainic acid-induced seizures in rat hippocampus.
1992 Dec
Role of hypotension in brain-death associated impairment of liver microcirculation and viability.
2000
Anxiety and sensitivity to ethanol and pentobarbital in alcohol withdrawal seizure-prone and withdrawal seizure-resistant mice.
2000 Dec
Treatment of pentobarbitol sodium (Nembutal) hyperactivity: a new approach.
2000 Mar
Changes of the level of G protein alpha-subunit mRNA by tolerance to and withdrawal from pentobarbital in rats.
2002 Jun
Co-assembly of GABA rho subunits with the GABA(A) receptor gamma(2) subunit cloned from white perch retina.
2002 Jun 30
Inactivation of the hepatic cytochrome P450 system by conditional deletion of hepatic cytochrome P450 reductase.
2003 Apr 11
Pharmacological agents, hippocampal EEG, and anticonvulsant effects on soman-induced seizures in rats.
2003 Jun
Preprocedural fasting state and adverse events in children undergoing procedural sedation and analgesia in a pediatric emergency department.
2003 Nov
A single M1 residue in the beta2 subunit alters channel gating of GABAA receptor in anesthetic modulation and direct activation.
2003 Oct 31
Key structural features of ligands for activation of human pregnane X receptor.
2004 Apr
Inhibition of activator protein 1 by barbiturates is mediated by differential effects on mitogen-activated protein kinases and the small G proteins ras and rac-1.
2004 Dec
Pentobarbital-mediated regulation of alternative polyadenylation in Drosophila glutathione S-transferase D21 mRNAs.
2004 Feb 6
Influence of different anaesthetics on pro-inflammatory cytokine expression in rat spleen.
2004 Jul
Influence of O(3)/O(2)-pneumoperitoneum as an oxidative stressor on duration of anaesthesia, loss of different reflexes and cytokine mRNA expression.
2004 Jul
Discriminative stimulus effects of ethanol in mice lacking the gamma-aminobutyric acid type A receptor delta subunit.
2004 Jun
Abnormalities in uridine homeostatic regulation and pyrimidine nucleotide metabolism as a consequence of the deletion of the uridine phosphorylase gene.
2005 Jun 3
Valproate hepatotoxicity in a 5-year-old boy with cerebral palsy due to neonatal asphyxia.
2006 Dec
Brainstem thyrotropin-releasing hormone regulates food intake through vagal-dependent cholinergic stimulation of ghrelin secretion.
2006 Dec
Isoflurane improves survival and protects against renal and hepatic injury in murine septic peritonitis.
2007 Apr
Modulation of neuronal activity in CNS pain pathways following propofol administration in rats: Fos and EEG analysis.
2007 May
Both orexin receptors are expressed in rat ovaries and fluctuate with the estrous cycle: effects of orexin receptor antagonists on gonadotropins and ovulation.
2007 Oct
Targeted deletion of the GABRA2 gene encoding alpha2-subunits of GABA(A) receptors facilitates performance of a conditioned emotional response, and abolishes anxiolytic effects of benzodiazepines and barbiturates.
2008 Jul
Impact of anesthesia on valvular function in normal rats during echocardiography.
2008 Oct
Patents

Sample Use Guides

Intramuscular Administration: IM injection of the sodium salts of barbiturates should be made deeply into a large muscle, and a volume of 5 mL should not be exceeded at any one site because of possible tissue irritation. After IM injection of a hypnotic dose, the patient's vital signs should be monitored. The usual adult dosage of Pentobarbital Sodium is 150 to 200 mg as a single IM injection; the recommended pediatric dosage ranges from 2 to 6 mg/kg as a single IM injection not to exceed 100 mg. Intravenous Administration: Pentobarbital Sodium should not be admixed with any other medication or solution. IV injection is restricted to conditions in which other routes are not feasible, either because the patient is unconscious (as in cerebral hemorrhage, eclampsia, or status epilepticus), or because the patient resists (as in delirium), or because prompt action is imperative. Slow IV injection is essential, and patients should be carefully observed during administration. This requires that blood pressure, respiration, and cardiac function be maintained, vital signs be recorded, and equipment for resuscitation and artificial ventilation be available. The rate of IV injection should not exceed 50 mg/min for Pentobarbital Sodium. There is no average intravenous dose of Pentobarbital Sodium that can be relied on to produce similar effects in different patients. The possibility of overdose and respiratory depression is remote when the drug is injected slowly in fractional doses. A commonly used initial dose for the 70 kg adult is 100 mg. Proportional reduction in dosage should be made for pediatric or debilitated patients. At least one minute is necessary to determine the full effect of intravenous pentobarbital. If necessary, additional small increments of the drug may be given up to a total of from 200 to 500 mg for normal adults.
Route of Administration: Other
It was studied the effects of pentobarbital on extracellular activity in ventrobasal thalamic slices. Pentobarbital at sedative-hypnotic concentration (20 microM) reversibly induced 1-15 Hz oscillations. Sustained oscillations required electrical stimulation of internal capsule, but not elevated temperature or low [Mg2+]. Anesthetic concentration (200 microM) of pentobarbital evoked only transient oscillations.
Name Type Language
PENTOBARBITAL CALCIUM
JAN   WHO-DD  
Common Name English
Pentobarbital calcium [WHO-DD]
Common Name English
PENTOBARBITAL CALCIUM [JAN]
Common Name English
(±)-PENTOBARBITAL CALCIUM
Common Name English
RAVONA
Brand Name English
NEMBUTAL CALCIUM
Common Name English
BARBITURIC ACID, 5-ETHYL-5-(1-METHYLBUTYL)-, CALCIUM SALT (2:1)
Common Name English
CALCIUM 5-ETHYL-5-(1-METHYLBUTYL)BARBITURATE
Systematic Name English
BARBITURIC ACID, 5-ETHYL-5-(1-METHYLBUTYL)-, CALCIUM SALT
Common Name English
2,4,6(1H,3H,5H)-PYRIMIDINETRIONE, 5-ETHYL-5-(1-METHYLBUTYL)-, CALCIUM SALT (2:1)
Common Name English
PENTOBARBITAL CALCIUM SALT [MI]
Common Name English
2,4,6(1H,3H,5H)-PYRIMIDINETRIONE, 5-ETHYL-5-(1-METHYLBUTYL)-, CALCIUM SALT
Common Name English
REPOCAL
Brand Name English
NEODORM
Brand Name English
PENTOBARBITAL CALCIUM SALT
MI  
Common Name English
MONOCALCIUM BIS(5-ETHYL-5-((1RS)-1-METHYLBUTYL)-4,6-DIOXO-1,4,5,6-TETRAHYDROPYRIMIDIN-2-OLATE)
Systematic Name English
Code System Code Type Description
CAS
7563-42-0
Created by admin on Sat Dec 17 17:42:02 UTC 2022 , Edited by admin on Sat Dec 17 17:42:02 UTC 2022
NON-SPECIFIC STOICHIOMETRY
EVMPD
SUB03690MIG
Created by admin on Sat Dec 17 17:42:02 UTC 2022 , Edited by admin on Sat Dec 17 17:42:02 UTC 2022
PRIMARY
ECHA (EC/EINECS)
231-460-2
Created by admin on Sat Dec 17 17:42:02 UTC 2022 , Edited by admin on Sat Dec 17 17:42:02 UTC 2022
PRIMARY
FDA UNII
66V4W08X7J
Created by admin on Sat Dec 17 17:42:02 UTC 2022 , Edited by admin on Sat Dec 17 17:42:02 UTC 2022
PRIMARY
CAS
24876-35-5
Created by admin on Sat Dec 17 17:42:02 UTC 2022 , Edited by admin on Sat Dec 17 17:42:02 UTC 2022
PRIMARY
MERCK INDEX
M8513
Created by admin on Sat Dec 17 17:42:02 UTC 2022 , Edited by admin on Sat Dec 17 17:42:02 UTC 2022
PRIMARY Merck Index
ChEMBL
CHEMBL448
Created by admin on Sat Dec 17 17:42:02 UTC 2022 , Edited by admin on Sat Dec 17 17:42:02 UTC 2022
PRIMARY
PUBCHEM
656845
Created by admin on Sat Dec 17 17:42:02 UTC 2022 , Edited by admin on Sat Dec 17 17:42:02 UTC 2022
PRIMARY