PENTAZOCINE HYDROCHLORIDE

Details

Stereochemistry	RACEMIC
Molecular Formula	C19H27NO.ClH
Molecular Weight	321.885
Optical Activity	( + / - )
Defined Stereocenters	3 / 3
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

Cl.C[C@H]1[C@H]2CC3=CC=C(O)C=C3[C@]1(C)CCN2CC=C(C)C

InChI

InChIKey=OQGYMIIFOSJQSF-DTOXXUQYSA-N

InChI=1S/C19H27NO.ClH/c1-13(2)7-9-20-10-8-19(4)14(3)18(20)11-15-5-6-16(21)12-17(15)19;/h5-7,12,14,18,21H,8-11H2,1-4H3;1H/t14-,18+,19+;/m0./s1

HIDE SMILES / InChI

Description
Sources: https://www.drugs.com/cdi/pentazocine.html | https://www.ncbi.nlm.nih.gov/pubmed/23370666
Curator's Comment: description was created based on several sources, including https://www.ncbi.nlm.nih.gov/pubmed/12379919 | https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/016194s079s080lbl.pdf | https://www.drugbank.ca/drugs/DB00652

Pentazocine is a synthetically prepared prototypical mixed agonist-antagonist narcotic (opioid analgesic) drug of the benzomorphan class of opioids used to treat moderate to moderately severe pain. Pentazocine is sold under several brand names, such as Fortral, Sosegon, Talwin NX. Pentazocine acts as an agonist of κ-opioid receptors and as an antagonist of μ-opioid receptors. This compound may exist as one of two enantiomers, named (+)-pentazocine and (−)-pentazocine. Side effects are similar to those of morphine, but pentazocine, due to its action at the kappa opioid receptor is more likely to invoke psychotomimetic effects. High dose may cause high blood pressure or high heart rate.

CNS Activity

Originator

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
Mu opioid receptor 221 Target ID: CHEMBL233 Sources: https://www.ncbi.nlm.nih.gov/pubmed/2831363	Antagonist 2778		6.9 nM [Ki]
Kappa opioid receptor 108 Target ID: CHEMBL237 Sources: https://www.ncbi.nlm.nih.gov/pubmed/2831363	Agonist 2678		75.0 nM [Ki]

Conditions

Condition	Modality	Targets	Highest Phase	Product
Pain 614 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2016/016194s079s080lbl.pdf	Primary		Approved 8429	TALWIN Approved Use Pentazocine Hydrochloride and Naloxone Hydrochloride Tablets, USP is indicated for the relief of moderate to severe pain. Pentazocine Hydrochloride and Naloxone Hydrochloride Tablets, USP is indicated for oral use only. Launch Date 1967

C_max

Value	Dose	Co-administered	Analyte	Population
227 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/3709032/	80 mg single, intramuscular dose: 80 mg route of administration: Intramuscular experiment type: SINGLE co-administered:		PENTAZOCINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: UNKNOWN
102 ng/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/3709032/	40 mg single, intramuscular dose: 40 mg route of administration: Intramuscular experiment type: SINGLE co-administered:		PENTAZOCINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: UNKNOWN

AUC

Value	Dose	Co-administered	Analyte	Population
1311 ng × h/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/3709032/	80 mg single, intramuscular dose: 80 mg route of administration: Intramuscular experiment type: SINGLE co-administered:		PENTAZOCINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: UNKNOWN
536 ng × h/mL EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/3709032/	40 mg single, intramuscular dose: 40 mg route of administration: Intramuscular experiment type: SINGLE co-administered:		PENTAZOCINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: UNKNOWN

T_1/2

Value	Dose	Co-administered	Analyte	Population
5.3 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/3709032/	80 mg single, intramuscular dose: 80 mg route of administration: Intramuscular experiment type: SINGLE co-administered:		PENTAZOCINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: UNKNOWN
4.6 h EXPERIMENT https://pubmed.ncbi.nlm.nih.gov/3709032/	40 mg single, intramuscular dose: 40 mg route of administration: Intramuscular experiment type: SINGLE co-administered:		PENTAZOCINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: UNKNOWN food status: UNKNOWN

Doses

Dose	Population	Adverse events
30 mg single, intramuscular Dose: 30 mg Route: intramuscular Route: single Dose: 30 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf	Disc. AE: Respiratory depression, Hypotension... AEs leading to discontinuation/dose reduction: Respiratory depression Hypotension (severe) Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf
30 mg single, intramuscular Dose: 30 mg Route: intramuscular Route: single Dose: 30 mg Co-administed with:: benzodiazepines Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf	Disc. AE: Sedation, Coma... AEs leading to discontinuation/dose reduction: Sedation Coma Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf

AEs

AE	Significance	Dose	Population
Respiratory depression	Disc. AE	30 mg single, intramuscular Dose: 30 mg Route: intramuscular Route: single Dose: 30 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf
Hypotension	severe Disc. AE	30 mg single, intramuscular Dose: 30 mg Route: intramuscular Route: single Dose: 30 mg Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf
Coma	Disc. AE	30 mg single, intramuscular Dose: 30 mg Route: intramuscular Route: single Dose: 30 mg Co-administed with:: benzodiazepines Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf
Sedation	Disc. AE	30 mg single, intramuscular Dose: 30 mg Route: intramuscular Route: single Dose: 30 mg Co-administed with:: benzodiazepines Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf	unhealthy Health Status: unhealthy Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2019/016194s081lbl.pdf

Overview

CYP3A4	CYP2C9	CYP2D6	hERG
substrate 1737			inhibitor 1612

OverviewOther

Other Inhibitor	Other Substrate	Other Inducer
Nav1.5 97	CYP1A2 1054 P-gp 1537

Drug as victim

Target	Modality	Activity
CYP1A2 1054	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/17823102/ Page: 6.0	likely
CYP3A4 1737	substrate 3367 Sources: https://pubmed.ncbi.nlm.nih.gov/17823102/ Page: 6.0	likely
P-gp 1537	substrate 3367 Sources: https://europepmc.org/article/med/24915880#R34	yes

Tox targets

Target	Modality	Activity	Metabolite	Clinical evidence
Nav1.5 100	inhibitor 1626 Sources: https://pubmed.ncbi.nlm.nih.gov/19279232/ Page: 3.0
hERG 1647	inhibitor 1626 Sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3151040/

Sourcing

Vendor/Aggregator	ID	URL
Chemieliva Pharmaceutical Co., Ltd	PBCM1405771
Compound Cloud	441277
Compound Cloud	441278
Compound Cloud	656697
Finetech	FT-0673607	http://www.finetechnology-ind.com/product/All%20product%20List/7488-49-5.html
MuseChem	I011222	https://www.musechem.com/product/I011222.html
NovoSeek	441278
Smolecule	S538980	http://www.smolecule.com/products/s538980
Smolecule	S538981	http://www.smolecule.com/products/s538981
THE BioTek	bt-278515	https://www.thebiotek.com/product/inhibitors/bt-278515
THE BioTek	bt-278516	https://www.thebiotek.com/product/inhibitors/bt-278516
Tetrahedron	TS54857
Yick-Vic Chemicals & Pharmaceuticals (HK) Ltd.	PH-0691A
ZINC	ZINC000000000596	http://zinc15.docking.org/substances/ZINC000000000596

PubMed

Title	Date	PubMed
Pentazocine addict nephropathy: a case report.	1992 Mar	1316215
WHO Expert Committee on Drug Dependence. Thirty-second report.	2001	11851193
Phencyclidine impairs latent learning in mice: interaction between glutamatergic systems and sigma(1) receptors.	2001 Apr	11182540
Pharmacological actions of AH-9700 on micturition reflex in anesthetized rats.	2001 Jan 26	11165228
Chitosan based pentazocine microspheres for intranasal systemic delivery: development and biopharmaceutical evaluation.	2001 Mar	11265588
Modulation of serotonergic neurotransmission by short- and long-term treatments with sigma ligands.	2001 Oct	11588125
Potentiation of opioid analgesia in dopamine2 receptor knock-out mice: evidence for a tonically active anti-opioid system.	2001 Oct 1	11567069
[Biopharmaceutical studies on molecular mechanisms of membrane transport].	2002 Dec	12510384
Substance abuse monitoring by the Correctional Service of Canada.	2002 Feb	11805743
Synthesis of (+)-cis-N-(4-isothiocyanatobenzyl)-N-normetazocine, an isothiocyanate derivative of N-benzylnormetazocine as acylant agent for the sigma(1) receptor.	2002 Jun 6	12036376
Synthesis and evaluation of 3-(4-chlorobenzyl)-8-[11C]methoxy-1,2,3,4-tetrahydrochromeno[3,4-c]pyridin-5-one: a PET tracer for imaging sigma(1) receptors.	2002 May	12031882
Investigation on the influx transport mechanism of pentazocine at the blood-brain barrier in rats using the carotid injection technique.	2002 Oct	12392093
Agonist/antagonist properties of nalbuphine, butorphanol and (-)-pentazocine in male vs. female rats.	2003 Apr	12759132
Intracellular dynamics of sigma-1 receptors (sigma(1) binding sites) in NG108-15 cells.	2003 Aug	12730356
Differential effects of agonists on adenylyl cyclase superactivation mediated by the kappa opioid receptors: adenylyl cyclase superactivation is independent of agonist-induced phosphorylation, desensitization, internalization, and down-regulation.	2003 Dec	14557376
Sigma1 receptor agonist-mediated regulation of N-methyl-D-aspartate-stimulated [3H]dopamine release is dependent upon protein kinase C.	2003 Jan	12490613
Gabapentin in the management of pentazocine dependence: a potent analgesic--anticraving agent.	2003 Jul	14621035
The analgesic effect of oral morphine or pentazocine for extracorporeal shock wave lithotripsy.	2003 Mar	12747344
[Neurochemical analysis and pharmacological regulation of the corticofugal control of the nociceptive signals in the afferent pathways].	2003 Mar-Apr	12962044
Opioid agonists have different efficacy profiles for G protein activation, rapid desensitization, and endocytosis of mu-opioid receptors.	2003 May 23	12642578
Modulation of Fas receptor proteins and dynamin during opiate addiction and induction of opiate withdrawal in rat brain.	2003 Nov	14530904
[Combined use of intrathecal morphine and diclofenac suppository for postoperative analgesia after caesarean section].	2003 Oct	14598667
Procaine hydrochloride fails to relieve pain in patients with acute pancreatitis.	2004	14755147
The sigma receptor ligand (+)-pentazocine prevents apoptotic retinal ganglion cell death induced in vitro by homocysteine and glutamate.	2004 Apr 7	15046867
Delta-opioid receptor agonist reduces severity of postresuscitation myocardial dysfunction.	2004 Aug	15044199
[Intermittent complete left bundle branch block during general anesthesia].	2004 Dec	15682804
Experimental pain models reveal no sex differences in pentazocine analgesia in humans.	2004 May	15114226
Modulation of bradykinin-induced calcium changes in SH-SY5Y cells by neurosteroids and sigma receptor ligands via a shared mechanism.	2004 Nov	15352135
Sex-related psychological predictors of baseline pain perception and analgesic responses to pentazocine.	2005 Apr	15740828
Using mixed agonist-antagonists.	2005 Feb	15706252

Patents

Sample Use Guides

In Vivo Use Guide

Initial dose: 30 mg by intramuscular, subcutaneous, or intravenous route. This may be repeated every 3 to 4 hours. Doses in excess of 30 mg intravenously or 60 mg intramuscularly or subcutaneously are not recommended. Maximum daily dose: 360 mg

Route of Administration: Other

In Vitro Use Guide

Cultured bovine adrenal medullary cells (1 × 10^6 / well) or SK-N-SH cells (0.3 × 10^6 / well) were preincubated with or without PTZ (Pentazocine) for the indicated times and further incubated at 37°C for another 12 min in KRH buffer containing 100 μM pargyline, 1 mM ascorbic acid, and [3H]NE (500 or 100 nM, respectively, 0.1 μCi) in the presence or absence of desipramine and PTZ. KRH buffer was composed of 154 mM NaCl, 5.6 mM KCl, 1.1 mM MgSO4, 2.2 mM CaCl2, 10 mM HEPES-Tris, and 10 mM glucose, adjusted to pH 7.4. After incubation, the cells were rapidly washed three times with 250 μl of ice-cold KRH buffer and solubilized in 500 μl of 10% Triton X-100. The radioactivity in the solubilized cells was counted with a liquid scintillation counter.

Name

Type

Language

PENTAZOCINE HYDROCHLORIDE

Official Name

English

PENTAZOCINE HYDROCHLORIDE [VANDF]

Common Name

English

PENTAZOCINE HYDROCHLORIDE [MI]

Common Name

English

PENTAZOCINE HYDROCHLORIDE [USP MONOGRAPH]

Common Name

English

PENTAZOCINE HYDROCHLORIDE COMPONENT OF TALWIN COMPOUND

Common Name

English

PENTAZOCINE HYDROCHLORIDE [ORANGE BOOK]

Common Name

English

TALACEN COMPONENT PENTAZOCINE HYDROCHLORIDE

Common Name

English

PENTAZOCINE HYDROCHLORIDE [EP MONOGRAPH]

Common Name

English

TALWIN NX COMPONENT PENTAZOCINE HYDROCHLORIDE

Common Name

English

2,6-METHANO-3-BENZAZOCIN-8-OL, 1,2,3,4,5,6-HEXAHYDRO-6,11-DIMETHYL-3-(3-METHYL-2-BUTENYL)-, HYDROCHLORIDE, (2.ALPHA.,6.ALPHA.,11R*)-

Common Name

English

PENTAZOCINE HYDROCHLORIDE COMPONENT OF TALWIN NX

Common Name

English

TALWIN 50

Brand Name

English

PENTAZOCINE HYDROCHLORIDE [USAN]

Common Name

English

PENTAZOCINE HYDROCHLORIDE COMPONENT OF TALACEN

Common Name

English

PENTAZOCINE HYDROCHLORIDE [MART.]

Common Name

English

(2R*,6R*,11R*)-1,2,3,4,5,6-HEXAHYDRO-6,11-DIMETHYL-3-(3-METHYL-2-BUTENYL)-2,6-METHANO-3-BENZAZOCIN-8-OL HYDROCHLORIDE

Common Name

English

TALWIN COMPOUND COMPONENT PENTAZOCINE HYDROCHLORIDE

Common Name

English

PENTAZOCINE HCL

Common Name

English

Pentazocine hydrochloride [WHO-DD]

Common Name

English

PENTAZOCINE HYDROCHLORIDE [JAN]

Common Name

English

Classification Tree Code System Code

DEA NO.

9709