U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry ABSOLUTE
Molecular Formula C10H13NO3
Molecular Weight 195.2151
Optical Activity ( - )
Defined Stereocenters 1 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of METYROSINE

SMILES

C[C@](N)(CC1=CC=C(O)C=C1)C(O)=O

InChI

InChIKey=NHTGHBARYWONDQ-JTQLQIEISA-N
InChI=1S/C10H13NO3/c1-10(11,9(13)14)6-7-2-4-8(12)5-3-7/h2-5,12H,6,11H2,1H3,(H,13,14)/t10-/m0/s1

HIDE SMILES / InChI

Description
Curator's Comment: Description was created based on several sources, including https://www.drugs.com/cdi/metyrosine.html

Metirosine is an antihypertensive drug. Metyrosine inhibits tyrosine hydroxylase, which catalyzes the first transformation in catecholamine biosynthesis, i.e., the conversion of tyrosine to dihydroxyphenylalanine (DOPA). Because the first step is also the rate-limiting step, blockade of tyrosine hydroxylase activity results in decreased endogenous levels of catecholamines and their synthesis. This consequently, depletes the levels of the catecholamines dopamine, adrenaline and noradrenaline in the body,usually measured as decreased urinary excretion of catecholamines and their metabolites. One main end result of the catecholamine depletion is a decrease in blood presure. Metirosine is used for the treatment of patients with pheochromocytoma, for preoperative preparation of patients for surgery, management of patients when surgery is contraindicated, and chronic treatment of patients with malignant pheochromocytoma.

CNS Activity

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
Demser

Approved Use

Demser is indicated in the treatment of patients with pheochromocytoma for: 1. Preoperative preparation of patients for surgery 2. Management of patients when surgery is contraindicated 3. Chronic treatment of patients with malignant pheochromocytoma.

Launch Date

1979
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
3313 ng/mL
230 mg 2 times / day steady-state, oral
dose: 230 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
METIROSINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
6550 ng/mL
920 mg 1 times / day steady-state, oral
dose: 920 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
METIROSINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
15538 ng × h/mL
230 mg 2 times / day steady-state, oral
dose: 230 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
METIROSINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
28005 ng × h/mL
920 mg 1 times / day steady-state, oral
dose: 920 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
METIROSINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
9.1 h
230 mg 2 times / day steady-state, oral
dose: 230 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
METIROSINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
4.1 h
920 mg 1 times / day steady-state, oral
dose: 920 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
METIROSINE plasma
Homo sapiens
population: UNHEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
Doses

Doses

DosePopulationAdverse events​
920 mg 1 times / day steady, oral
Highest studied dose
Dose: 920 mg, 1 times / day
Route: oral
Route: steady
Dose: 920 mg, 1 times / day
Sources:
unhealthy, 64.9 years (range: 45.6 - 84.1 years)
Other AEs: Arthralgia, Fatigue...
Other AEs:
Arthralgia (grade 3)
Fatigue (grade 3)
Asthenia (grade 3)
Rash
Hypotension
Sources:
AEs

AEs

AESignificanceDosePopulation
Hypotension
920 mg 1 times / day steady, oral
Highest studied dose
Dose: 920 mg, 1 times / day
Route: oral
Route: steady
Dose: 920 mg, 1 times / day
Sources:
unhealthy, 64.9 years (range: 45.6 - 84.1 years)
Rash
920 mg 1 times / day steady, oral
Highest studied dose
Dose: 920 mg, 1 times / day
Route: oral
Route: steady
Dose: 920 mg, 1 times / day
Sources:
unhealthy, 64.9 years (range: 45.6 - 84.1 years)
Arthralgia grade 3
920 mg 1 times / day steady, oral
Highest studied dose
Dose: 920 mg, 1 times / day
Route: oral
Route: steady
Dose: 920 mg, 1 times / day
Sources:
unhealthy, 64.9 years (range: 45.6 - 84.1 years)
Asthenia grade 3
920 mg 1 times / day steady, oral
Highest studied dose
Dose: 920 mg, 1 times / day
Route: oral
Route: steady
Dose: 920 mg, 1 times / day
Sources:
unhealthy, 64.9 years (range: 45.6 - 84.1 years)
Fatigue grade 3
920 mg 1 times / day steady, oral
Highest studied dose
Dose: 920 mg, 1 times / day
Route: oral
Route: steady
Dose: 920 mg, 1 times / day
Sources:
unhealthy, 64.9 years (range: 45.6 - 84.1 years)
Sourcing

Sourcing

Vendor/AggregatorIDURL
PubMed

PubMed

TitleDatePubMed
Carnitine palmitoyltransferase-1 (CPT-1) activity stimulation by cerulenin via sympathetic nervous system activation overrides cerulenin's peripheral effect.
2004-07
[Effect of catecholamines on migration and differentiation of gonadotropin releasing hormone-neurons in rats].
2004-03-19
Stress- as well as suckling-induced prolactin release is blocked by a structural analogue of the putative hypophysiotrophic prolactin-releasing factor, salsolinol.
2004-03
Inhibition of dopamine synthesis with alpha-methyl-p-tyrosine abolishes the enhancement of methamphetamine-induced extracellular dopamine levels in the amygdala of rats with excitotoxic lesions of the entorhinal cortex.
2004-02-06
Postnatal regulation by monoamines of vasopressin expression in the neuroendocrine hypothalamus of MAO-A-deficient mice.
2004-02
Methamphetamine produces neuronal inclusions in the nigrostriatal system and in PC12 cells.
2004-01
Differential effects of local versus systemic angiotensin II in the regulation of leptin release from adipocytes.
2004-01
Expression of tyrosine hydroxylase in lymphocytes and effect of endogenous catecholamines on lymphocyte function.
2004
Mu opioid control of the N-methyl-D-aspartate-evoked release of [3H]-acetylcholine in the limbic territory of the rat striatum in vitro: diurnal variations and implication of a dopamine link.
2004
Dopamine is involved in selectivity of dopaminergic neuronal death by rotenone.
2003-12-19
Comparison of effects of dual transporter inhibitors on monoamine transporters and extracellular levels in rats.
2003-12
Monoamine depletion in psychiatric and healthy populations: review.
2003-11
Potential mechanisms responsible for chlorotriazine-induced alterations in catecholamines in pheochromocytoma (PC12) cells.
2003-10-31
The effect of 3,4-methylenedioxymethamphetamine ('Ecstasy') on serotonergic regulation of the mammalian circadian clock mechanism in rats: the role of dopamine and hyperthermia.
2003-10-23
Sensorimotor deficits in a unilateral intrastriatal 6-OHDA partial lesion model of Parkinson's disease in marmoset monkeys.
2003-10
The new neurokinin 1-sensitive receptor mediates the facilitation by endogenous tachykinins of the NMDA-evoked release of acetylcholine after suppression of dopaminergic transmission in the matrix of the rat striatum.
2003-10
Gliomatosis cerebri evaluated by 18Falpha-methyl tyrosine positron-emission tomography.
2003-10
[Effect of catecholamines synthesis blockade on functional status of hypothalamic vasopressinergic neurons in dehydrated rats].
2003-09-17
Parkin gene inactivation alters behaviour and dopamine neurotransmission in the mouse.
2003-09-15
Neurochemical aspects of susceptibility to depression.
2003-09-10
Dopamine depletion and in vivo binding of PET D1 receptor radioligands: implications for imaging studies in schizophrenia.
2003-09
Synergistic effect of SCH 58261, an adenosine A2A receptor antagonist, and L-DOPA on the reserpine-induced muscle rigidity in rats.
2003-08-21
Differential effects of amphetamine transport vs. dopamine reverse transport on particulate PKC activity in striatal synaptoneurosomes.
2003-08
Regional brain metabolic correlates of alpha-methylparatyrosine-induced depressive symptoms: implications for the neural circuitry of depression.
2003-06-18
Overexpression of V-1 prevents nitric oxide-induced cell death: involvement of enhanced tetrahydrobiopterin biosynthesis.
2003-06-15
Anterograde delivery of brain-derived neurotrophic factor to striatum via nigral transduction of recombinant adeno-associated virus increases neuronal death but promotes neurogenic response following stroke.
2003-06
Evidence for a monoamine mediated, opioid-independent, antihyperalgesic effect of venlafaxine, a non-tricyclic antidepressant, in a neurogenic pain model in rats.
2003-06
Quercetin potentiates L-Dopa reversal of drug-induced catalepsy in rats: possible COMT/MAO inhibition.
2003-06
Prolactin-releasing peptide and its homolog RFRP-1 act in hypothalamus but not in anterior pituitary gland to stimulate stress hormone secretion.
2003-04-02
Monoaminergic control of vasopressin and VIP expression in the mouse suprachiasmatic nucleus.
2003-03-15
Modulation of the ability of clozapine to facilitate NMDA- and electrically evoked responses in pyramidal cells of the rat medial prefrontal cortex by dopamine: pharmacological evidence.
2003-03
The L-DOPA-sparing effect of R-(-)-1-(benzofuran-2-yl)-2-propylaminopentane hydrochloride [(-)-BPAP] in reserpine-pretreated rats.
2003-02-07
Evidence for the involvement of dopamine in ambulation promoted by menthol in mice.
2003-02
Inhibitory effects of atropine and hexamethonium on the angiotensin II-induced contractions of rat anococcygeus smooth muscles.
2003-02
Catecholamines in a macrophage cell line.
2003-02
Brain tyrosine hydroxylase in the catfish Heteropneustes fossilis: annual and circadian variations, and sex and regional differences in enzyme activity and some kinetic properties.
2003-01
Effects of catecholamine depletion on D2 receptor binding, mood, and attentiveness in humans: a replication study.
2003-01
Concomitant effect of acetylcholine and dopamine on carotid chemosensory activity in catecholamine depleted cats.
2003
Acetyl-l-carnitine induces muscarinic antinocieption in mice and rats.
2002-12
Catecholamine production and tyrosine hydroxylase expression in peripheral blood mononuclear cells from multiple sclerosis patients: effect of cell stimulation and possible relevance for activation-induced apoptosis.
2002-12
Noninvasive grading of untreated gliomas: a comparative study of MR imaging and 3-(iodine 123)-L-alpha-methyltyrosine SPECT.
2002-11
Modulation of stress-induced and stimulated hyperprolactinemia with the group II metabotropic glutamate receptor selective agonist, LY379268.
2002-10
Interaction of stress and noradrenergic drugs in the control of picrotoxin-induced seizures.
2002-09
Role of cerebral dopamine but not plasma insulin, leptin and glucocorticoid in the development of tolerance to the anorectic effect of amphetamine.
2002-09
Neurochemical changes in mice following physical or psychological stress exposures.
2002-08-21
The effects of dopamine synthesis inhibitors and dopamine antagonists on regeneration in the hydra Hydra attenuata.
2002-07-24
Oxidative stress and mitochondrial-mediated apoptosis in dopaminergic cells exposed to methylcyclopentadienyl manganese tricarbonyl.
2002-07
The fetal and neonatal brain protein neuronatin protects PC12 cells against certain types of toxic insult.
2002-06-30
Effect of catecholamines on activity of Na(+), K(+)-ATPase in neonatal piglet brain during posthypoxic reoxygenation.
2002-05
I-123-lodo-alpha-methyl tyrosine SPECT in non-parenchymal brain tumours.
2002
Patents

Sample Use Guides

In Vivo Use Guide
The recommended initial dosage for adults and children 12 years of age and older is 250 mg orally four times daily. This may be increased by 250 mg to 500 mg every day to a maximum of 4.0 g/day in divided doses.
Route of Administration: Oral
In Vitro Use Guide
DA synthesis inhibition (Metirosine, 50 uM) resulted in a marked increase in the firing rates of mouse dopaminergic cells.
Name Type Language
METIROSINE
INN   MART.   WHO-DD  
INN  
Preferred Name English
METYROSINE
MI   ORANGE BOOK   USAN   USP   USP-RS   VANDF  
USAN  
Official Name English
(-)-?-Methyl-L-tyrosine
Common Name English
METYROSINE [USAN]
Common Name English
L-Tyrosine, ?-methyl-
Common Name English
Metirosine [WHO-DD]
Common Name English
METYROSINE [USP-RS]
Common Name English
METYROSINE [USP MONOGRAPH]
Common Name English
METYROSINE [ORANGE BOOK]
Common Name English
Methyltyrosine
Common Name English
DEMSER
Brand Name English
MK-781
Code English
METYROSINE [MI]
Common Name English
metirosine [INN]
Common Name English
METYROSINE [VANDF]
Common Name English
(S)-2-(4-Hydroxybenzyl)-2-aminopropanoic acid
Systematic Name English
L-Tyrosine, ?-methyl-, (-)-
Common Name English
L-588357-0
Code English
(2S)-2-Amino-3-(4-hydroxyphenyl)-2-methylpropanoic acid
Systematic Name English
METIROSINE [MART.]
Common Name English
METIROSINE [JAN]
Common Name English
Classification Tree Code System Code
WHO-ATC C02KB01
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
NDF-RT N0000175361
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
FDA ORPHAN DRUG 265008
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
NDF-RT N0000175569
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
NCI_THESAURUS C2155
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
WHO-VATC QC02KB01
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
Code System Code Type Description
DRUG BANK
DB00765
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
DRUG CENTRAL
1792
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
RS_ITEM_NUM
1443205
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PRIMARY
CAS
23239-48-7
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
SUPERSEDED
DAILYMED
DOQ0J0TPF7
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
PUBCHEM
441350
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PRIMARY
IUPHAR
5094
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
CHEBI
6912
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
CAS
5380-13-2
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
SUPERSEDED
CAS
672-87-7
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
MERCK INDEX
m7510
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY Merck Index
WIKIPEDIA
METIROSINE
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
EVMPD
SUB08894MIG
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
ECHA (EC/EINECS)
211-599-5
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
INN
3929
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
FDA UNII
DOQ0J0TPF7
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
RXCUI
266604
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY RxNorm
SMS_ID
100000088392
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
EPA CompTox
DTXSID6023315
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
CAS
5380-13-2
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
SUPERSEDED
CAS
23239-48-7
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
SUPERSEDED
ChEMBL
CHEMBL1200862
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY
NCI_THESAURUS
C998
Created by admin on Mon Mar 31 17:57:17 GMT 2025 , Edited by admin on Mon Mar 31 17:57:17 GMT 2025
PRIMARY