METARAMINOL

Details

Stereochemistry	ABSOLUTE
Molecular Formula	C9H13NO2
Molecular Weight	167.205
Optical Activity	UNSPECIFIED
Defined Stereocenters	2 / 2
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

C[C@H](N)[C@H](O)C1=CC(O)=CC=C1

InChI

InChIKey=WXFIGDLSSYIKKV-RCOVLWMOSA-N

InChI=1S/C9H13NO2/c1-6(10)9(12)7-3-2-4-8(11)5-7/h2-6,9,11-12H,10H2,1H3/t6-,9-/m0/s1

HIDE SMILES / InChI

Description
Sources: http://www.druginformation.com/RxDrugs/M/Metaraminol%20Bitartrate%20Injection.html | https://www.ncbi.nlm.nih.gov/pubmed/9663612 | https://www.ncbi.nlm.nih.gov/pubmed/15703094

Metaraminol is a potent sympathomimetic amine that increases both systolic and diastolic blood pressure, is an adrenergic receptor alpha-1 agonist.. Metaraminol is indicated for prevention and treatment of the acute hypotensive state occurring with spinal anesthesia. It is also indicated as adjunctive treatment of hypotension due to hemorrhage, reactions to medications, surgical complications, and shock associated with brain damage due to trauma or tumor. Metaraminol is also used in the treatment of priapism, in spite of this application was not approved, it appears to be effective.

CNS Activity

Approval Year

Targets

Primary Target	Pharmacology	Condition	Potency
Adrenergic receptor alpha-1 169 Target ID: CHEMBL2094251 Sources: https://www.ncbi.nlm.nih.gov/pubmed/9663612	Agonist 2678

Conditions

Condition	Modality	Highest Phase	Product
Acute hypotensive state 3 Sources: http://www.druginformation.com/RxDrugs/M/Metaraminol%20Bitartrate%20Injection.html	Preventing	Approved 8429	METARAMINOL BITARTRATE Approved Use Metaraminol is indicated for prevention and treatment of the acute hypotensive state occurring with spinal anesthesia. It is also indicated as adjunctive treatment of hypotension due to hemorrhage, reactions to medications, surgical complications, and shock associated with brain damage due to trauma or tumor.
Hemorrhage 11 Sources: http://www.druginformation.com/RxDrugs/M/Metaraminol%20Bitartrate%20Injection.html	Palliative	Approved 8429	METARAMINOL BITARTRATE Approved Use Metaraminol is indicated for prevention and treatment of the acute hypotensive state occurring with spinal anesthesia. It is also indicated as adjunctive treatment of hypotension due to hemorrhage, reactions to medications, surgical complications, and shock associated with brain damage due to trauma or tumor.
Shock 9 Sources: http://www.druginformation.com/RxDrugs/M/Metaraminol%20Bitartrate%20Injection.html	Palliative	Approved 8429	METARAMINOL BITARTRATE Approved Use Metaraminol is indicated for prevention and treatment of the acute hypotensive state occurring with spinal anesthesia. It is also indicated as adjunctive treatment of hypotension due to hemorrhage, reactions to medications, surgical complications, and shock associated with brain damage due to trauma or tumor.
Priapism 7 Sources: https://www.ncbi.nlm.nih.gov/pubmed/15703094	Primary	Not Provided 504	Unknown Approved Use Unknown

Doses

Dose	Population	Adverse events
10 mg 4 times / hour single, intravenous Dose: 10 mg, 4 times / hour Route: intravenous Route: single Dose: 10 mg, 4 times / hour Sources: https://pubmed.ncbi.nlm.nih.gov/2751185	unhealthy, 38 years n = 1 Health Status: unhealthy Age Group: 38 years Sex: F Population Size: 1 Sources: https://pubmed.ncbi.nlm.nih.gov/2751185	Disc. AE: Bigeminal rhythm... AEs leading to discontinuation/dose reduction: Bigeminal rhythm (1 patient) Sources: https://pubmed.ncbi.nlm.nih.gov/2751185

AEs

AE	Significance	Dose	Population
Bigeminal rhythm	1 patient Disc. AE	10 mg 4 times / hour single, intravenous Dose: 10 mg, 4 times / hour Route: intravenous Route: single Dose: 10 mg, 4 times / hour Sources: https://pubmed.ncbi.nlm.nih.gov/2751185	unhealthy, 38 years n = 1 Health Status: unhealthy Age Group: 38 years Sex: F Population Size: 1 Sources: https://pubmed.ncbi.nlm.nih.gov/2751185

Overview

CYP3A4	CYP2C9	CYP2D6	hERG
inhibitor 1587	inhibitor 1767	inhibitor 1852

OverviewOther

Other Inhibitor	Other Substrate	Other Inducer
BSEP 402 CYP1A2 1524 CYP2C19 1478 OATP1B1 788 OATP1B3 706

Drug as perpetrator

Target	Modality	Activity
BSEP 403	inhibitor 3277 Sources: http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50239972, https://pubmed.ncbi.nlm.nih.gov/22961681/	no [IC50 >1000 uM]
OATP1B1 803	inhibitor 3277 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwxNjk3NjY4IiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDIwNjIyNjIifX0%3D, https://pubmed.ncbi.nlm.nih.gov/23571415/	yes [Inhibition 10 uM]
OATP1B3 715	inhibitor 3277 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwxNzQzMTIxIiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDIwNjIyNjIifX0%3D, https://pubmed.ncbi.nlm.nih.gov/23571415/	yes [Inhibition 10 uM]
CYP1A2 1692	inhibitor 3277 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwzMzU2IiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDEyMDEzMTkifX0%3D, https://pubmed.ncbi.nlm.nih.gov/22931300/	yes
CYP2C19 1553	inhibitor 3277 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwzNjIyIiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDEyMDEzMTkifX0%3D, https://pubmed.ncbi.nlm.nih.gov/22931300/	yes
CYP2C9 1819	inhibitor 3277 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwzMzk3IiwidXNlX2N1c3RvbV9xdWVyeSI6dHJ1ZSwic2VhcmNoX3Rlcm0iOiIiLCJ0ZXh0X2ZpbHRlciI6IkNIRU1CTDEyMDEzMTkifX0%3D, https://pubmed.ncbi.nlm.nih.gov/22931300/	yes
CYP2D6 1891	inhibitor 3277 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwyODkiLCJ1c2VfY3VzdG9tX3F1ZXJ5Ijp0cnVlLCJzZWFyY2hfdGVybSI6IiIsInRleHRfZmlsdGVyIjoiQ0hFTUJMMTIwMTMxOSJ9fQ%3D%3D, https://pubmed.ncbi.nlm.nih.gov/22931300/	yes
CYP3A4 1925	inhibitor 3277 Sources: https://www.ebi.ac.uk/chembl/g/#browse/activities/full_state/eyJsaXN0Ijp7InNldHRpbmdzX3BhdGgiOiJFU19JTkRFWEVTX05PX01BSU5fU0VBUkNILkFDVElWSVRZIiwiY3VzdG9tX3F1ZXJ5IjoidGFyZ2V0X2NoZW1ibF9pZDpDSEVNQkwzNDAiLCJ1c2VfY3VzdG9tX3F1ZXJ5Ijp0cnVlLCJzZWFyY2hfdGVybSI6IiIsInRleHRfZmlsdGVyIjoiQ0hFTUJMMTIwMTMxOSJ9fQ%3D%3D, https://pubmed.ncbi.nlm.nih.gov/22931300/	yes

Sourcing

Vendor/Aggregator	ID	URL
ChEBI	CHEBI:6794	https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:6794
ZINC	ZINC000000001695	http://zinc15.docking.org/substances/ZINC000000001695

PubMed

Title	Date	PubMed
Augmented natriuretic response to infusion of saline in dogs rendered acutely hypertensive with metaraminol.	1966 Jul	5918955
Myocardial infarction induced by metaraminol bitartrate (aramine).	1966 Oct	6009556
Pulmonary edema: a complication of metaraminol treatment of paroxysmal supraventricular tachycardia.	1974 May	4415385
[Metaraminol--an antidote in corpus cavernosum autoinjection therapy-induced prolonged erection].	1986 May	2426857
[Epilepsy and hypertensive crisis after intracavernous injection of metaraminol in the treatment of priapism secondary to a papaverine test].	1989 May 20	2524805
Post-traumatic priapism treated with metaraminol bitartrate: case report.	1990 Dec	2258979
The effect of intracarotid nonionic contrast media on the blood-brain barrier in acute hypertension.	1994 Jan	8141072
Reversible segmental left-ventricular dysfunction caused by accidental administration of sympathomimetic drug in human.	1997 Aug 29	9292339
Methanol solvent may cause increased apparent metabolic instability in in vitro assays.	2001 Feb	11159810
Assessment of cardiac sympathetic nerve integrity with positron emission tomography.	2001 Jul	11516699
Randomized controlled study of colloid preload before spinal anaesthesia for caesarean section.	2001 Nov	11878530
Hemodynamic pharmacology of intravenous vasopressors.	2003 Aug	12961786
Drinking attenuates the noradrenaline release in the lateral hypothalamic area induced by angiotensin II activation of the subfornical organ in rats.	2003 Mar 18	12644277
Prophylactic i.v. metaraminol during spinal anesthesia for elective Cesarean delivery.	2003 Oct	14525837
Use of alpha-agonists for management of anaphylaxis occurring under anaesthesia: case studies and review.	2004 Dec	15549981
A novel electrophilic synthesis and evaluation of medium specific radioactivity (1R,2S)-4-[18F]fluorometaraminol, a tracer for the assessment of cardiac sympathetic nerve integrity with PET.	2004 Jan	14741575
Cardiovascular aspects of anaphylaxis: implications for treatment and diagnosis.	2005 Aug	15985820
Bench-to-bedside review: hyperinsulinaemia/euglycaemia therapy in the management of overdose of calcium-channel blockers.	2006	16732893
Use of metaraminol in patients with Familial Mediterranean Fever.	2006 Aug	16867110
Planar chromatographic analysis and quantification of short-lived radioactive metabolites from microdialysis fractions.	2006 Mar 3	16445924
Meningismus after metaraminol administration in a patient with Familial Mediterranean fever.	2006 Oct	16987863
[Effect of fluid resuscitation on adhesion molecule and hemodynamics in patients with severe sepsis].	2006 Sep	16959151
Amniotic fluid embolism during vaginal delivery under analgesia. Case report.	2008 Jul-Aug	19378589
Is propofol a safe and effective sedative for relocating hip prostheses?	2009 Jan	19104094
Impact of admixture time and diluent order on metaraminol concentration.	2009 Sep	19777670
Vasopressor choice for hypotension in elective Cesarean section: ephedrine or phenylephrine?	2010 Apr 30	22371756
Molecular imaging of cardiac sympathetic innervation by 11C-mHED and PET: from man to mouse?	2010 Aug	20679472
Clinical evaluation of the flotrac/Vigileo system for continuous cardiac output monitoring in patients undergoing regional anesthesia for elective cesarean section: a pilot study.	2010 Jun	20835557
Adenosine-induced cardiopulmonary arrest in a patient with paroxysmal supraventricular tachycardia--a response.	2010 May	20466244

Patents

Sample Use Guides

In Vivo Use Guide

Intramuscular or Subcutaneous Injection: The recommended dose is 2 to 10 mg (0.2 to 1 mL). As with other agents given subcutaneously, only the preferred sites of injection, as set forth in standard texts, should be used. Intravenous Infusion: The recommended dose is 15 to 100 mg (1.5 to 10 mL) in 500 mL of Sodium Chloride Injection or 5% Dextrose Injection, adjusting the rate of infusion to maintain the blood pressure at the desired level. Higher concentrations of metaraminol, 150 to 500 mg per 500 mL of infusion fluid, have been used.

Route of Administration: Other

In Vitro Use Guide

Unknown

Name

Type

Language

METARAMINOL

Official Name

English

METARAMINOL [MI]

Common Name

English

METARAMINOL [HSDB]

Common Name

English

metaraminol [INN]

Common Name

English

METARAMINOL [VANDF]

Common Name

English

BENZENEMETHANOL, ALPHA-(1-AMINOETHYL)-3-HYDROXY-, (R-(R*,S*))-

Common Name

English

Metaraminol [WHO-DD]

Common Name

English

Classification Tree Code System Code

WHO-ATC

C01CA09