TRIMETHAPHAN

Details

Stereochemistry	MIXED
Molecular Formula	C22H25N2OS
Molecular Weight	365.512
Optical Activity	UNSPECIFIED
Defined Stereocenters	0 / 4
E/Z Centers	0
Charge	1

SHOW SMILES / InChI

Structure Search

SMILES

O=C1N(CC2=CC=CC=C2)C3C[S+]4CCCC4C3N1CC5=CC=CC=C5

InChI

InChIKey=CHQOEHPMXSHGCL-UHFFFAOYSA-N

InChI=1S/C22H25N2OS/c25-22-23(14-17-8-3-1-4-9-17)19-16-26-13-7-12-20(26)21(19)24(22)15-18-10-5-2-6-11-18/h1-6,8-11,19-21H,7,12-16H2/q+1

HIDE SMILES / InChI

Molecular Formula	C22H25N2OS
Molecular Weight	365.512
Charge	1
Count

Stereochemistry	MIXED
Additional Stereochemistry	No
Defined Stereocenters	0 / 4
E/Z Centers	0
Optical Activity	UNSPECIFIED

Description
Sources: https://www.drugs.com/mmx/trimethaphan-camsylate.html | https://www.ncbi.nlm.nih.gov/pubmed/8618259

Trimethaphan (or Trimethaphan camsylate), a ganglionic blocking agent and an antihypertensive drug, was marketed under the brand name Arfonad. Arfonad is indicated to induce systemic arterial hypotension in patients undergoing major surgery and to treat severe systemic hypertension, and in the emergency treatment of pulmonary edema in patients with pulmonary hypertension associated with systemic hypertension. Trimethaphan prevents stimulation of postsynaptic receptors by competing with acetylcholine for these receptor sites. Additional effects may include direct peripheral vasodilation and release of histamine. This drug was discontinued because of the competition from newer drugs that are more selective in their actions and effects.

Approval Year

Conditions

Condition	Modality	Targets	Highest Phase	Product
Hypertension 567 Sources: https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm?event=overview.process&ApplNo=008983	Primary		Approved 8429	ARFONAD Approved Use Hypotension, controlled (induction and maintenance) - Trimethaphan is indicated for production of controlled hypotension during surgery to reduce bleeding into the surgical field. Hypertension (treatment) - Trimethaphan is indicated for rapid reduction of blood pressure in the treatment of hypertensive emergencies, especially in patients with acute dissecting aneurysm, and in the emergency treatment of pulmonary edema in patients with pulmonary hypertension associated with systemic hypertension.

Doses

Dose	Population	Adverse events
9 mg/min 1 times / day multiple, intravenous (mean) Studied dose Dose: 9 mg/min, 1 times / day Route: intravenous Route: multiple Dose: 9 mg/min, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/938175/	unhealthy, 23 to 66 years n = 4 Health Status: unhealthy Condition: hypertension Age Group: 23 to 66 years Sex: M+F Population Size: 4 Sources: https://pubmed.ncbi.nlm.nih.gov/938175/	Disc. AE: Respiratory arrest... AEs leading to discontinuation/dose reduction: Respiratory arrest Sources: https://pubmed.ncbi.nlm.nih.gov/938175/
0.115 mg/kg 1 times / day single, intravenous (mean) Studied dose Dose: 0.115 mg/kg, 1 times / day Route: intravenous Route: single Dose: 0.115 mg/kg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/	pregnant, adult n = 56 Health Status: pregnant Age Group: adult Sex: F Population Size: 56 Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/	Other AEs: Yawning, Sensation of warmth... Other AEs: Yawning Sensation of warmth Nausea Vomiting Pallor Dizziness Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/

AEs

AE	Significance	Dose	Population
Respiratory arrest	Disc. AE	9 mg/min 1 times / day multiple, intravenous (mean) Studied dose Dose: 9 mg/min, 1 times / day Route: intravenous Route: multiple Dose: 9 mg/min, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/938175/	unhealthy, 23 to 66 years n = 4 Health Status: unhealthy Condition: hypertension Age Group: 23 to 66 years Sex: M+F Population Size: 4 Sources: https://pubmed.ncbi.nlm.nih.gov/938175/
Dizziness		0.115 mg/kg 1 times / day single, intravenous (mean) Studied dose Dose: 0.115 mg/kg, 1 times / day Route: intravenous Route: single Dose: 0.115 mg/kg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/	pregnant, adult n = 56 Health Status: pregnant Age Group: adult Sex: F Population Size: 56 Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/
Nausea		0.115 mg/kg 1 times / day single, intravenous (mean) Studied dose Dose: 0.115 mg/kg, 1 times / day Route: intravenous Route: single Dose: 0.115 mg/kg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/	pregnant, adult n = 56 Health Status: pregnant Age Group: adult Sex: F Population Size: 56 Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/
Pallor		0.115 mg/kg 1 times / day single, intravenous (mean) Studied dose Dose: 0.115 mg/kg, 1 times / day Route: intravenous Route: single Dose: 0.115 mg/kg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/	pregnant, adult n = 56 Health Status: pregnant Age Group: adult Sex: F Population Size: 56 Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/
Sensation of warmth		0.115 mg/kg 1 times / day single, intravenous (mean) Studied dose Dose: 0.115 mg/kg, 1 times / day Route: intravenous Route: single Dose: 0.115 mg/kg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/	pregnant, adult n = 56 Health Status: pregnant Age Group: adult Sex: F Population Size: 56 Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/
Vomiting		0.115 mg/kg 1 times / day single, intravenous (mean) Studied dose Dose: 0.115 mg/kg, 1 times / day Route: intravenous Route: single Dose: 0.115 mg/kg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/	pregnant, adult n = 56 Health Status: pregnant Age Group: adult Sex: F Population Size: 56 Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/
Yawning		0.115 mg/kg 1 times / day single, intravenous (mean) Studied dose Dose: 0.115 mg/kg, 1 times / day Route: intravenous Route: single Dose: 0.115 mg/kg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/	pregnant, adult n = 56 Health Status: pregnant Age Group: adult Sex: F Population Size: 56 Sources: https://pubmed.ncbi.nlm.nih.gov/13059864/

Sourcing

Vendor/Aggregator	ID	URL
ABI Chem	AC1L2MN5
ABI Chem	AC1Q6LI1
Alfa Chemistry	ACM68917
BOC Sciences	21035-85-8
BOC Sciences	68-91-7
BOC Sciences	7187-66-8
ChemMol	99147727	http://www.chemmol.com/chemmol/99147727.html
Compound Cloud	23576
Compound Cloud	441310
MuseChem	I009884
MuseChem	M019330
THE BioTek	bt-425772	https://www.thebiotek.com/product/others/bt-425772
Tetrahedron	TS74953
Toronto Research Chemicals	T344755
Toronto Research Chemicals	T795435
ZINC	ZINC000003831581	http://zinc15.docking.org/substances/ZINC000003831581
ZINC	ZINC000003938748	http://zinc15.docking.org/substances/ZINC000003938748
ZINC	ZINC000100308855	http://zinc15.docking.org/substances/ZINC000100308855
ZINC	ZINC000100308860	http://zinc15.docking.org/substances/ZINC000100308860
ZINC	ZINC000207869944	http://zinc15.docking.org/substances/ZINC000207869944
eMolecules	110042105
eMolecules	313119497
eNovation Chemicals	D673675	https://www.enovationchem.com/ProductDetails.asp?ProductID=D673675

PubMed

Title	Date	PubMed
Brain blood flow and metabolism after global ischemia and post-insult thiopental therapy in monkeys.	1979 Sep-Oct	116395
[The effects of controlled hypotension induced by prostaglandin E1 and trimethaphan on coronary and systemic hemodynamics and myocardial contractility (author's transl)].	1982 Apr	7202062
Autoregulation of myocardial blood flow under controlled hypotension in the dog.	1982 Jun	7113627
[Effect of trimethaphan-induced hypotension on pituitary-adrenocortical function].	1986 Mar	3012136
[Difference in susceptibility between auditory and equilibrium function in rabbits with experimentally-induced transient ischemic attack].	1989 Feb	2746423
The hemodynamic and metabolic changes in prostaglandin E1-induced hypotension in dogs--a comparative study with trimetaphan-induced hypotension.	1989 Sep 1	15236040
Chronic lesion of rostral ventrolateral medulla in spontaneously hypertensive rats.	1992 Feb	1735570
[Pharmacokinetics of epidurally administered bupivacaine during prostaglandin E1- or trimetaphan-induced hypotension].	1992 May	1608154
Effects of trimetaphan-induced deliberate hypotension on human cochlear blood flow.	1998	10095859
Role of the multidomain protein spinophilin in blood pressure and cardiac function regulation.	2008 Oct	18711009

Patents

Sample Use Guides

In Vivo Use Guide

Controlled hypotension during surgery: Initial: Intravenous infusion, 3 to 4 mg per minute, adjusted according to response. Maintenance: Intravenous infusion, 300 mcg (0.3 mg) to 6 mg per minute. Hypertensive emergency: Initial: Intravenous infusion, 500 mcg (0.5 mg) to 1 mg per minute, adjusted according to response. Maintenance: Intravenous infusion, 1 to 5 mg per minut

Route of Administration: Intravenous

Substance Class	Chemical Created by `admin` on `Fri Dec 15 16:19:51 GMT 2023` Edited by `admin` on `Fri Dec 15 16:19:51 GMT 2023`
Record UNII	6G8X656T45
Record Status	`Validated (UNII)`
Record Version

Download

Name

Type

Language

TRIMETHAPHAN

Common Name

English

TRIMETAPHAN

Common Name

English

THIENO(1',2':1,2)THIENO(3,4-D)IMIDAZOLIUM, DECAHYDRO-2-OXO-1,3-BIS(PHENYLMETHYL)-

Systematic Name

English

TRIMETHAPHAN CATION

Common Name

English

TRIMETHAPHAN ION

Common Name

English

Trimetaphan [WHO-DD]

Common Name

English

1,3-DIBENZYL-2-OXODECAHYDROTHIENO(1',2':1,2)THIENO(3,4-D)IMIDAZOL-5-IUM

Systematic Name

English

Classification Tree Code System Code

WHO-VATC

QC02BA01