General Information of Drug (ID: DM7YMIT)

Drug Name
Methohexital
Synonyms
Brevital; Brietal; Enallynymall; Enallynymalum; Methodrexitone; Methohexitalum; Methohexitone; Metoesital; Metohexital; Metoesital [DCIT]; Brevital (TN); Methohexital, Monosodium Salt; Methohexitalum [INN-Latin]; Metohexital [INN-Spanish]; Methohexital (USP/INN); Alpha-DL-1-Methyl-5-allyl-5-(1'-methylpentyn-2-yl)barbituricacid; (+-)-5-Allyl-1-methyl-5-(1-methyl-2-pentynyl)barbituric acid; 1-methyl-5-(1-methylpent-2-yn-1-yl)-5-(prop-2-en-1-yl)pyrimidine-2,4,6(1H,3H,5H)-trione; 1-methyl-5-(1-methylpent-2-yn-1-yl)-5-prop-2-en-1-ylpyrimidine-2,4,6(1H,3H,5H)-trione; 5-Allyl-1-methyl-5-(1-methyl-2-pentynyl)-2,4,6(1H,3H,5H)-pyrimidinetrione; 5-Allyl-1-methyl-5-(1-methyl-pent-2-ynyl)-pyrimidine-2,4,6-trione; 5-Allyl-5-(3-hexyn-2-yl)-1-methylbarbituric acid; 5-hex-3-yn-2-yl-1-methyl-5-prop-2-enyl-1,3-diazinane-2,4,6-trione
Indication
Disease Entry ICD 11 Status REF
Anaesthesia 9A78.6 Approved [1], [2]
Therapeutic Class
Anesthetics
Drug Type
Small molecular drug
Structure
3D MOL 2D MOL
#Ro5 Violations (Lipinski): 0 Molecular Weight (mw) 262.3
Topological Polar Surface Area (xlogp) 2.3
Rotatable Bond Count (rotbonds) 3
Hydrogen Bond Donor Count (hbonddonor) 1
Hydrogen Bond Acceptor Count (hbondacc) 3
ADMET Property
BDDCS Class
Biopharmaceutics Drug Disposition Classification System (BDDCS) Class 1: high solubility and high permeability [3]
Bioavailability
The bioavailability of drug is 17% [4]
Clearance
The drug present in the plasma can be removed from the body at the rate of 12 mL/min/kg [5]
Elimination
0.5% of drug is excreted from urine in the unchanged form [3]
Half-life
The concentration or amount of drug in body reduced by one-half in 5.6 +/- 2.7 minutes [5]
Metabolism
The drug is metabolized via the liver [4]
MRTD
The Maximum Recommended Therapeutic Dose (MRTD) of drug that ensured maximising efficacy and moderate side effect is 7.62453 micromolar/kg/day [6]
Unbound Fraction
The unbound fraction of drug in plasma is 0.27% [5]
Vd
Fluid volume that would be required to contain the amount of drug present in the body at the same concentration as in the plasma 1.1 L/kg [5]
Water Solubility
The ability of drug to dissolve in water is measured as 100 mg/mL [3]
Chemical Identifiers
Formula
C14H18N2O3
IUPAC Name
5-hex-3-yn-2-yl-1-methyl-5-prop-2-enyl-1,3-diazinane-2,4,6-trione
Canonical SMILES
CCC#CC(C)C1(C(=O)NC(=O)N(C1=O)C)CC=C
InChI
InChI=1S/C14H18N2O3/c1-5-7-8-10(3)14(9-6-2)11(17)15-13(19)16(4)12(14)18/h6,10H,2,5,9H2,1,3-4H3,(H,15,17,19)
InChIKey
NZXKDOXHBHYTKP-UHFFFAOYSA-N
Cross-matching ID
PubChem CID
9034
ChEBI ID
CHEBI:102216
CAS Number
151-83-7
DrugBank ID
DB00474
TTD ID
D0S8TD

Molecular Interaction Atlas of This Drug


Drug Therapeutic Target (DTT)
DTT Name DTT ID UniProt ID MOA REF
GABA(A) receptor alpha-1 (GABRA1) TT1MPAY GBRA1_HUMAN Antagonist [7]
Molecular Interaction Atlas (MIA) Jump to Detail Molecular Interaction Atlas of This Drug

Drug-Drug Interaction (DDI) Information of This Drug

Coadministration of a Drug Treating the Same Disease as Methohexital
DDI Drug Name DDI Drug ID Severity Mechanism Disease REF
Propofol DMB4OLE Moderate Additive cardiorespiratory depression effects by the combination of Methohexital and Propofol. Corneal disease [9A76-9A78] [12]
Coadministration of a Drug Treating the Disease Different from Methohexital (Comorbidity)
DDI Drug Name DDI Drug ID Severity Mechanism Comorbidity REF
Mitotane DMU1GX0 Minor Increased metabolism of Methohexital caused by Mitotane mediated induction of CYP450 enzyme. Adrenal cancer [2D11] [13]
Nifedipine DMSVOZT Moderate Increased metabolism of Methohexital caused by Nifedipine mediated induction of CYP450 enzyme. Angina pectoris [BA40] [14]
Aminophylline DML2NIB Moderate Increased metabolism of Methohexital caused by Aminophylline mediated induction of CYP450 enzyme. Asthma [CA23] [15]
Ethanol DMDRQZU Major Additive CNS depression effects by the combination of Methohexital and Ethanol. Cystitis [GC00] [16]
Paroxetine DM5PVQE Minor Increased metabolism of Methohexital caused by Paroxetine mediated induction of CYP450 enzyme. Depression [6A70-6A7Z] [17]
Fosphenytoin DMOX3LB Moderate Increased metabolism of Methohexital caused by Fosphenytoin mediated induction of CYP450 enzyme. Epilepsy/seizure [8A61-8A6Z] [18]
Nicardipine DMCDYW7 Moderate Increased metabolism of Methohexital caused by Nicardipine mediated induction of CYP450 enzyme. Essential hypertension [BA00] [14]
Cimetidine DMH61ZB Minor Altered absorption of Methohexital caused by Cimetidine. Gastro-oesophageal reflux disease [DA22] [19]
Levamlodipine DM92S6N Moderate Increased metabolism of Methohexital caused by Levamlodipine mediated induction of CYP450 enzyme. Hypertension [BA00-BA04] [14]
Verapamil DMA7PEW Moderate Increased metabolism of Methohexital caused by Verapamil mediated induction of CYP450 enzyme. Hypertension [BA00-BA04] [20]
Biperiden DME78OA Moderate Additive CNS depression effects by the combination of Methohexital and Biperiden. Parkinsonism [8A00] [21]
Fenoprofen DML5VQ0 Minor Increased metabolism of Methohexital caused by Fenoprofen mediated induction of CYP450 enzyme. Rheumatoid arthritis [FA20] [22]
LEE011 DMMX75K Moderate Increased metabolism of Methohexital caused by LEE011 mediated induction of CYP450 enzyme. Solid tumour/cancer [2A00-2F9Z] [23]
Propafenone DMPIBJK Minor Increased metabolism of Methohexital caused by Propafenone. Ventricular tachyarrhythmia [BC71] [24]
⏷ Show the Full List of 14 DDI Information of This Drug

References

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2 FDA Approved Drug Products from FDA Official Website. 2009. Application Number: (NDA) 011559.
3 BDDCS applied to over 900 drugs
4 FDA approval: ado-trastuzumab emtansine for the treatment of patients with HER2-positive metastatic breast cancer. Clin Cancer Res. 2014 Sep 1;20(17):4436-41.
5 Trend Analysis of a Database of Intravenous Pharmacokinetic Parameters in Humans for 1352 Drug Compounds
6 Estimating the safe starting dose in phase I clinical trials and no observed effect level based on QSAR modeling of the human maximum recommended daily dose
7 DrugBank: a knowledgebase for drugs, drug actions and drug targets. Nucleic Acids Res. 2008 Jan;36(Database issue):D901-6.
8 Zolpidem, a selective GABA(A) receptor alpha1 subunit agonist, induces comparable Fos expression in oxytocinergic neurons of the hypothalamic paraventricular and accessory but not supraoptic nuclei in the rat.Brain Res Bull.2006 Dec 11;71(1-3):200-7.
9 Neurosteroid analogues. 10. The effect of methyl group substitution at the C-6 and C-7 positions on the GABA modulatory and anesthetic actions of (... J Med Chem. 2005 Apr 21;48(8):3051-9.
10 3-demethoxy-3-glycosylaminothiocolchicines: Synthesis of a new class of putative muscle relaxant compounds. J Med Chem. 2006 Sep 7;49(18):5571-7.
11 Drugs@FDA. U.S. Food and Drug Administration. U.S. Department of Health & Human Services.
12 Gill SS, Wright EM, Reilly CS "Pharmacokinetic interaction of propofol and fentanyl: single bolus injection study." Br J Anaesth 65 (1990): 760-5. [PMID: 2265045]
13 Product Information. Lysodren (mitotane). Bristol-Myers Squibb, Princeton, NJ.
14 Hamann SR, Blouin RA, Chang SL, et al "Effects of hemodynamic changes on the elimination kinetics of verapamil and nifedipine." J Pharmacol Exp Ther 231 (1984): 301-5. [PMID: 6491984]
15 Bukowskyj M, Nakatsu K, Munt PW "Theophylline reassessed." Ann Intern Med 101 (1984): 63-73. [PMID: 6145380]
16 Gupta RC, Kofoed J "Toxological statistics for barbiturates, other sedatives, and tranquilizers in Ontario: a 10-year survey." Can Med Assoc J 94 (1966): 863-5. [PMID: 5929537]
17 Product Information. Paxil (paroxetine). GlaxoSmithKline, Research Triangle Park, NC.
18 Kuranari M, Tatsukawa H, Seike M, et al. "Effect of phenytoin on phenobarbital pharmacokinetics in a patient with epilepsy." Ann Pharmacother 29 (1995): 83-4. [PMID: 7711354]
19 Somogyi A, Thielscher S, Gugler R "Influence of phenobarbital treatment on cimetidine kinetics." Eur J Clin Pharmacol 19 (1981): 343-7. [PMID: 7238562]
20 Rutledge DR, Pieper JA, Mirvis DM "Effects of chronic phenobarbital on verapamil dispostion in humans." J Pharmacol Exp Ther 246 (1988): 7-13. [PMID: 3392664]
21 Product Information. Artane (trihexyphenidyl). Lederle Laboratories, Wayne, NJ.
22 Helleberg L, Rubin A, Wolen RL, et al "A pharmacokinetic interaction in man between phenobarbitone and fenoprofen, a new anti-inflammatory agent." Br J Clin Pharmacol 1 (1974): 371-4. [PMID: 22454912]
23 Cerner Multum, Inc. "Australian Product Information.".
24 Sams RA, Muir WW. Effects of phenobarbital on thiopental pharmacokinetics in greyhounds. Am J Vet Res. 1988;49(2):245-249. [PMID: 3348533]