ORPHENADRINE CITRATE

Details

Stereochemistry	RACEMIC
Molecular Formula	C18H23NO.C6H8O7
Molecular Weight	461.5048
Optical Activity	( + / - )
Defined Stereocenters	0 / 1
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure Search

SMILES

OC(=O)CC(O)(CC(O)=O)C(O)=O.CN(C)CCOC(C1=CC=CC=C1)C2=C(C)C=CC=C2

InChI

InChIKey=MMMNTDFSPSQXJP-UHFFFAOYSA-N

InChI=1S/C18H23NO.C6H8O7/c1-15-9-7-8-12-17(15)18(20-14-13-19(2)3)16-10-5-4-6-11-16;7-3(8)1-6(13,5(11)12)2-4(9)10/h4-12,18H,13-14H2,1-3H3;13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)

HIDE SMILES / InChI

Description
Sources: https://www.accessdata.fda.gov/drugsatfda_docs/anda/99/40249_Orphenadrine%20Citrate_Prntlbl.pdf
Curator's Comment: description was created based on several sources, including https://www.drugbank.ca/drugs/DB01173 | https://www.drugs.com/cdi/orphenadrine.html

Orphenadrine is an anticholinergic drug of the ethanolamine antihistamine class used to treat muscle pain and to help with motor control in Parkinson's disease but has largely been superseded by newer drugs. Orphenadrine binds and inhibits both histamine H1 receptors and NMDA receptors. It restores the motor disturbances induced by neuroleptics, in particular, the hyperkinesia. The dopamine deficiency in the striatum increases the stimulating effects of the cholinergic system. This stimulation is counteracted by the anticholinergic effect of orphenadrine. It may have a relaxing effect on skeletal muscle spasms and it has a mood elevating effect. Orphenadrine is indicated as an adjunct to rest, physical therapy, and other measures for the relief of discomfort associated with acute painful musculoskeletal conditions. Orphenadrine is an anticholinergic with a predominantly central effect and only a weak peripheral effect. In addition, it has mild antihistaminic and local anesthetic properties. Parkinson's syndrome is the consequence of a disturbed balance between cholinergic and dopaminergic neurotransmission in the basal ganglia caused by a decrease in dopamine. Orphenadrine restores the physiological equilibrium and has a favorable effect on the rigidity and tremor of Parkinson's disease and Parkinsonian syndromes. Adverse reactions of orphenadrine citrate are mainly due to the mild anticholinergic action of orphenadrine citrate and are usually associated with higher dosage. Dryness of the mouth is usually the first adverse effect to appear. When the daily dose is increased, possible adverse effects include tachycardia, palpitation, urinary hesitancy or retention, blurred vision, dilatation of pupils, increased ocular tension, weakness, nausea, vomiting, headache, dizziness, constipation, drowsiness, hypersensitivity reactions, pruritus, hallucinations, agitation, tremor, gastric irritation and rarely urticaria and other dermatoses

CNS Activity

Originator

Approval Year

Targets

Primary Target	Pharmacology	Potency
Histamine H1 receptor 315 Target ID: CHEMBL231 Sources: https://www.ncbi.nlm.nih.gov/pubmed/22793499	Antagonist 2778	97.7 µM [IC50]
Glutamate [NMDA] receptor 125 Target ID: CHEMBL2094124 Sources: https://www.ncbi.nlm.nih.gov/pubmed/9464369	Antagonist 2778	6.0 µM [Ki]
Muscarinic acetylcholine receptor 160 Target ID: CHEMBL2094109 Sources: https://www.ncbi.nlm.nih.gov/pubmed/3353357	Antagonist 2778

Conditions

Condition	Modality	Targets	Highest Phase	Product
Musculoskeletal pain 10 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/anda/99/40249_Orphenadrine%20Citrate_Prntlbl.pdf	Primary		Approved 8429	DISIPAL Approved Use Orphenadrine citrate extended-release tablets are indicated as an adjunct to rest, physical therapy, and other measures for the relief of discomfort associated with acute painful musculoskeletal conditions. Launch Date 1957
Quinine-resistant leg cramps 3 Sources: https://www.accessdata.fda.gov/drugsatfda_docs/anda/99/40249_Orphenadrine%20Citrate_Prntlbl.pdf	Primary		Approved 8429	DISIPAL Approved Use Orphenadrine citrate extended-release tablets are indicated as an adjunct to rest, physical therapy, and other measures for the relief of discomfort associated with acute painful musculoskeletal conditions. Launch Date 1957

C_max

Value	Dose	Co-administered	Analyte	Population
41.89 ng/mL REVIEW https://www.accessdata.fda.gov/drugsatfda_docs/anda/99/40249_Orphenadrine%20Citrate_Bioeqr.pdf	100 mg single, oral dose: 100 mg route of administration: Oral experiment type: SINGLE co-administered:		ORPHENADRINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED
49.19 ng/mL REVIEW https://www.accessdata.fda.gov/drugsatfda_docs/anda/99/40249_Orphenadrine%20Citrate_Bioeqr.pdf	100 mg single, oral dose: 100 mg route of administration: Oral experiment type: SINGLE co-administered:		ORPHENADRINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FED

AUC

Value	Dose	Co-administered	Analyte	Population
1739.15 ng × h/mL REVIEW https://www.accessdata.fda.gov/drugsatfda_docs/anda/99/40249_Orphenadrine%20Citrate_Bioeqr.pdf	100 mg single, oral dose: 100 mg route of administration: Oral experiment type: SINGLE co-administered:		ORPHENADRINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED
1772.44 ng × h/mL REVIEW https://www.accessdata.fda.gov/drugsatfda_docs/anda/99/40249_Orphenadrine%20Citrate_Bioeqr.pdf	100 mg single, oral dose: 100 mg route of administration: Oral experiment type: SINGLE co-administered:		ORPHENADRINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FED

T_1/2

Value	Dose	Co-administered	Analyte	Population
21.02 h REVIEW https://www.accessdata.fda.gov/drugsatfda_docs/anda/99/40249_Orphenadrine%20Citrate_Bioeqr.pdf	100 mg single, oral dose: 100 mg route of administration: Oral experiment type: SINGLE co-administered:		ORPHENADRINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FASTED
22.29 h REVIEW https://www.accessdata.fda.gov/drugsatfda_docs/anda/99/40249_Orphenadrine%20Citrate_Bioeqr.pdf	100 mg single, oral dose: 100 mg route of administration: Oral experiment type: SINGLE co-administered:		ORPHENADRINE plasma	Homo sapiens population: HEALTHY age: ADULT sex: MALE food status: FED

F_unbound

Value	Dose	Co-administered	Analyte	Population
7% EXPERIMENT https://www.sciencedirect.com/science/article/pii/S0021967307003342?via%3Dihub			ORPHENADRINE plasma	Homo sapiens

Doses

Dose	Population	Adverse events
500 mg 1 times / day steady, oral Highest studied dose Dose: 500 mg, 1 times / day Route: oral Route: steady Dose: 500 mg, 1 times / day Sources: https://pubmed.ncbi.nlm.nih.gov/1220958	unhealthy, adult Health Status: unhealthy Condition: depression Age Group: adult Sources: https://pubmed.ncbi.nlm.nih.gov/1220958	Sources: https://pubmed.ncbi.nlm.nih.gov/1220958
2 g single, intramuscular Overdose Dose: 2 g Route: intramuscular Route: single Dose: 2 g Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf	unhealthy, adult Health Status: unhealthy Age Group: adult Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf	Other AEs: Toxic reaction (NOS)... Other AEs: Toxic reaction (NOS) (grade 5) Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf
2 g single, intravenous Overdose Dose: 2 g Route: intravenous Route: single Dose: 2 g Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf	unhealthy, adult Health Status: unhealthy Age Group: adult Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf	Other AEs: Toxic reaction (NOS)... Other AEs: Toxic reaction (NOS) (grade 5) Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf
2 g single, oral Overdose Dose: 2 g Route: oral Route: single Dose: 2 g Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf	unhealthy, adult Health Status: unhealthy Age Group: adult Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf	Other AEs: Toxic reaction (NOS)... Other AEs: Toxic reaction (NOS) (grade 5) Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf

AEs

AE	Significance	Dose	Population
Toxic reaction (NOS)	grade 5	2 g single, intramuscular Overdose Dose: 2 g Route: intramuscular Route: single Dose: 2 g Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf	unhealthy, adult Health Status: unhealthy Age Group: adult Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf
Toxic reaction (NOS)	grade 5	2 g single, intravenous Overdose Dose: 2 g Route: intravenous Route: single Dose: 2 g Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf	unhealthy, adult Health Status: unhealthy Age Group: adult Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf
Toxic reaction (NOS)	grade 5	2 g single, oral Overdose Dose: 2 g Route: oral Route: single Dose: 2 g Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf	unhealthy, adult Health Status: unhealthy Age Group: adult Sources: https://www.accessdata.fda.gov/drugsatfda_docs/label/2007/012157s028lbl.pdf https://www.accessdata.fda.gov/drugsatfda_docs/label/2008/013055s021lbl.pdf

Overview

CYP3A4	CYP2C9	CYP2D6	hERG
inhibitor 1587	inhibitor 1767	inhibitor 1852

OverviewOther

Other Inhibitor	Other Substrate	Other Inducer
CYP2B6 810 CYP1A2 1524 CYP2A6 707 CYP2C19 1478 OCT2 647 OCT1 512 MATE1 306 MATE2 263		CYP2B 32

Drug as perpetrator

Target	Modality	Activity
CYP1A2 1692	inhibitor 3277 Sources: https://dmd.aspetjournals.org/content/25/3/390.long	partial
CYP2A6 739	inhibitor 3277 Sources: https://dmd.aspetjournals.org/content/25/3/390.long	partial
CYP2C19 1553	inhibitor 3277 Sources: https://dmd.aspetjournals.org/content/25/3/390.long	partial
CYP3A4 1925	inhibitor 3277 Sources: https://dmd.aspetjournals.org/content/25/3/390.long	partial
CYP2B6 1001	inhibitor 3277 Sources: https://dmd.aspetjournals.org/content/25/3/390.long	strong
CYP2C9 1819	inhibitor 3277 Sources: https://dmd.aspetjournals.org/content/25/3/390.long	strong
CYP2D6 1891	inhibitor 3277 Sources: https://dmd.aspetjournals.org/content/25/3/390.long	strong
MATE1 308	inhibitor 3277 Sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3257218/	weak [IC50 65 uM]
MATE2 263	inhibitor 3277 Sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3257218/	weak [IC50 >100 uM]
OCT1 543	inhibitor 3277 Sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3257218/	weak [IC50 >100 uM]
OCT2 648	inhibitor 3277 Sources: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3257218/	yes [IC50 2.5 uM]
CYP2B 40	inducer 1573 Sources: https://pubmed.ncbi.nlm.nih.gov/12813002/	yes

Sourcing

Vendor/Aggregator	ID	URL
Aurora Fine Chemicals LLC	K02.874.612	http://online.aurorafinechemicals.com/info?ID=K02.874.612
BLD Pharm	BD63442	http://www.bldpharm.com/products/83-98-7.html
ChemMol	99164358	http://www.chemmol.com/chemmol/99164358.html
Chemspace	CSSB00020618959	https://chem-space.com/CSSB00020618959
Clearsynth	CS-P-00468	https://www.clearsynth.com/en/CSP00468.html
Smolecule	S603082	https://www.smolecule.com/products/s603082
THE BioTek	bt-364984	https://www.thebiotek.com/product/others/bt-364984
eNovation Chemicals	D111469	https://www.enovationchem.com/ProductDetails.asp?ProductID=D111469
iChemical	EBD71118	http://www.ichemical.com/products/83-98-7.html?utm_source=PubChem&utm_medium=website&utm_campaign=product%20catalogs
mcule	MCULE-7320950210	https://mcule.com/MCULE-7320950210/

PubMed

Title	Date	PubMed
Prochlorperazine in childhood: side-effects.	1977	216517
Reversal of orphenadrine-induced ventricular tachycardia with physostigmine.	1991 Nov-Dec	1787292
[Comparative study between botulin toxin and bupivacaine for triggering-points infiltration in chronic myofascial syndrome.].	2005 Apr	19471828
Long QT syndrome in a patient with allergic rhinoconjunctivitis and auto-immune diabetes: focus on the choice of anti-H1 drugs.	2006 Dec	17274518
Restless legs syndrome: diagnosis and review of management options.	2006 Jun	19412460
OPC-67683, a nitro-dihydro-imidazooxazole derivative with promising action against tuberculosis in vitro and in mice.	2006 Nov	17132069
Effects of enzyme inducers and inhibitors on the pharmacokinetics of metformin in rats: involvement of CYP2C11, 2D1 and 3A1/2 for the metabolism of metformin.	2006 Oct	16940989
Efficacy and safety of combined piroxicam, dexamethasone, orphenadrine, and cyanocobalamin treatment in mandibular molar surgery.	2006 Sep	16981050
Anticholinergic drug-induced delirium in an elderly Alzheimer's dementia patient.	2007	17317453
Characterization of antihistamine-human serum protein interactions by capillary electrophoresis.	2007 Apr 20	17339039
Evaluation of enantioselective binding of basic drugs to plasma by ACE.	2007 Aug	17661317
Evaluation of enantioselective binding of antihistamines to human serum albumin by ACE.	2007 Aug	17605150
Anticholinergic antiparkinson drug orphenadrine inhibits HERG channels: block attenuation by mutations of the pore residues Y652 or F656.	2007 Dec	17965852
[Enzyme kinetics of schizandrin metabolism and sex differences in rat liver microsomes].	2007 Jul	17882956
Enantiomeric quality control of antihistamines in pharmaceuticals by affinity electrokinetic chromatography with human serum albumin as chiral selector.	2007 Jun 5	17512827
Determination of paracetamol and orphenadrine citrate in pharmaceutical tablets by modeling of spectrophotometric data using partial least-squares and artificial neural networks.	2007 Oct	17917430
Parkinson's disease and dopaminergic therapy--differential effects on movement, reward and cognition.	2008 Aug	18577547
Effect of warnings in a medical journal on the use of orphenadrine.	2008 Aug	18462287
Pharmacologic profiling of human and rat cytochrome P450 1A1 and 1A2 induction and competition.	2008 Dec	18493746
Pharmacokinetic, metabolism and withdrawal time of orphenadrine in camels (Camelus dromedarius) after intravenous administration.	2008 Dec	18321539
Are there alternatives to the use of quinine to treat nocturnal leg cramps?	2008 Feb	18454580
Genetic and chemical modifiers of a CUG toxicity model in Drosophila.	2008 Feb 13	18270582
Effects of CYP inducers and inhibitors on the pharmacokinetics of intravenous theophylline in rats: involvement of CYP1A1/2 in the formation of 1,3-DMU.	2008 Jan	18088504
Characterization of aconitine-induced block of delayed rectifier K+ current in differentiated NG108-15 neuronal cells.	2008 May	18336846
[Diclofenac/orphenadrine as a combined analgetic in post-operative relief of pain].	2008 Sep 28	18805773
Demographics of toxic exposures presenting to three public hospital emergency departments in Singapore 2001-2003.	2009 Apr	19390914
Concordant up-regulation of cytochrome P450 Cyp3a11, testosterone oxidation and androgen receptor expression in mouse brain after xenobiotic treatment.	2009 Apr	19226368
Involvement of voltage-gated sodium channels blockade in the analgesic effects of orphenadrine.	2009 Apr	19217209
The use of antipsychotic and anticholinergic antiparkinson drugs in Norway after the withdrawal of orphenadrine.	2009 Aug	19694744
Evaluation of luciferin-isopropyl acetal as a CYP3A4 substrate for human hepatocytes: effects of organic solvents, cytochrome P450 (P450) inhibitors, and P450 inducers.	2009 Aug	19451401
The use and potential abuse of anticholinergic antiparkinson drugs in Norway: a pharmacoepidemiological study.	2009 Feb	19094158
Effects of cytochrome P450 inducers and inhibitors on the pharmacokinetics of intravenous furosemide in rats: involvement of CYP2C11, 2E1, 3A1 and 3A2 in furosemide metabolism.	2009 Jan	19126296
Fixed drug eruption resulting from fluconazole use: a case report.	2009 Jul 6	19830193
The first asymmetric halogen/metal-exchange reaction: desymmetrization of alcohols with enantiotopic bromoarene substituents.	2009 Jul 6	19492368
Influence of orphenadrine upon the protective activity of various antiepileptics in the maximal electroshock-induced convulsions in mice.	2009 Jul-Aug	19815957
Trends in the molecular pathogenesis and clinical therapeutics of common neurodegenerative disorders.	2009 Jun 3	19582217
Physiological and pathological role of alpha-synuclein in Parkinson's disease through iron mediated oxidative stress; the role of a putative iron-responsive element.	2009 Mar	19399246
Determination of orphenadrine plasma levels using HPLC with diode array detection and a novel solid-phase extraction procedure in psychiatric patients.	2009 Oct 15	19524386
Drugs associated with more suicidal ideations are also associated with more suicide attempts.	2009 Oct 2	19798416
Pharmacokinetics of mirodenafil, a new erectogenic, and its metabolite, SK3541, in rats: involvement of CYP1A1/2, 2B1/2, 2D subfamily, and 3A1/2 for the metabolism of both mirodenafil and SK3541.	2010	20456834
Testosterone hydroxylation in bovine liver: enzyme kinetic and inhibition study.	2010 Apr	20088676
Comprehensive identification of active compounds in tablets by flow-injection data-dependent tandem mass spectrometry combined with library search.	2010 Apr 15	20097023
Orphenadrinium picrate.	2010 Dec 18	21522693
Orphenadrinium picrate picric acid.	2010 Feb 24	21580426
(2-Methyl-phen-yl)(phen-yl)methanol.	2010 Jul 31	21588424
Pharmacologic management of chronic pain.	2010 Jun	20556211
7-Benzyloxyresorufin-O-dealkylase activity as a marker for measuring cytochrome P450 CYP3A induction in mouse liver.	2010 Mar 1	19903449
Opiate sparing effect of fixed combination of diclophenac and orphenadrine after unilateral total hip arthroplasty: A double-blind, randomized, placebo-controlled, multi-centre clinical trial.	2010 Nov	20890791
Full recovery from a potentially lethal dose of orphenadrine ingestion using conservative treatment: a case report.	2010 Nov	20200196
Profiling of a prescription drug library for potential renal drug-drug interactions mediated by the organic cation transporter 2.	2011 Jul 14	21599003

Patents

Sample Use Guides

In Vivo Use Guide

Acute musculoskeletal conditions: 100 mg orally twice a day (morning and evening) or 60 mg by intramuscular or intravenous injection. May repeat every 12 hours. Quinine-resistant leg cramps: 100 mg orally at bedtime.

Route of Administration: Other

In Vitro Use Guide

An aliquot (400 mkl) of the brain membrane suspension (0.14 mg of protein), 100 mkl of (-)3H-QNB (0.95 nM) (specific activity 46 Ci/mmol), and 50 mk1 of the competing drugs at various concentrations were preincubated for 10 min. and thereafter incubated for 60 min. at 25C in 50 mM Tris-HC1 buffer (PH 7.4). When binding to heart and lung membranes was studied, 500 nkl of homogenate (protein contents were 0.58 mg and 0.54 mg of rat heart and lung tissue and 0.63 mg of guinea pig lung tissue was added to tubes containing 500 mkl of 50 mM Tris-HC1 buffer (PH 7.4), 100 mk1 of (-)3H-QNB (final concentration 0.4 nM) and 100 mkl of buffer (total binding) or unlabeled Orphenadrine.

Name

Type

Language

ORPHENADRINE CITRATE

Common Name

English

ORPHENADRINE CITRATE COMPONENT OF ORPHENGESIC

Common Name

English

ORPHENADRINE DIHYDROGEN CITRATE

Common Name

English

ORPHENADRINE CITRATE COMPONENT OF INVAGESIC FORTE

Common Name

English

ORPHENGESIC FORTE COMPONENT ORPHENADRINE CITRATE

Common Name

English

NORFLEX

Brand Name

English

(±)-N,N-DIMETHYL-2-((O-METHYL-.ALPHA.-PHENYLBENZYL)OXY)ETHYLAMINE CITRATE (1:1)

Common Name

English

INVAGESIC FORTE COMPONENT ORPHENADRINE CITRATE

Common Name

English

ORPHENADRINE CITRATE [ORANGE BOOK]

Common Name

English

ORPHENADRINE CITRATE [MART.]

Common Name

English

ORPHENADRINE CITRATE COMPONENT OF NORGESIC

Common Name

English

ORPHENADRINE CITRATE [EP MONOGRAPH]

Common Name

English

ORPHENGESIC COMPONENT ORPHENADRINE CITRATE

Common Name

English

ORPHENADRINE CITRATE [MI]

Common Name

English

ORPHENADRINE CITRATE [VANDF]

Common Name

English

INVAGESIC COMPONENT ORPHENADRINE CITRATE

Common Name

English

NSC-757238

Code

English

ORPHENADRINE CITRATE [USP MONOGRAPH]

Common Name

English

Orphenadrine citrate [WHO-DD]

Common Name

English

ETHANAMINE, N,N-DIMETHYL-2-((2-METHYLPHENYL)PHENYLMETHOXY)-, (±)-, 2-HYDROXY-1,2,3-PROPANETRICARBOXYLATE (1:1)

Systematic Name

English

ORPHENADRINE CITRATE COMPONENT OF ORPHENGESIC FORTE

Common Name

English

ORPHENADRINE CITRATE [EP IMPURITY]

Common Name

English

ORPHENADRINE CITRATE COMPONENT OF INVAGESIC

Common Name

English

BANFLEX

Common Name

English

NORGESIC COMPONENT ORPHENADRINE CITRATE

Common Name

English

Classification Tree Code System Code

WHO-ATC

M03BC01