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Details

Stereochemistry RACEMIC
Molecular Formula C22H31NO3.C11H8O3
Molecular Weight 545.6659
Optical Activity ( + / - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of Oxybutynin xinafoate

SMILES

OC(=O)C1=CC=C2C=CC=CC2=C1O.CCN(CC)CC#CCOC(=O)C(O)(C3CCCCC3)C4=CC=CC=C4

InChI

InChIKey=SRVJTUJNFIQJMD-UHFFFAOYSA-N
InChI=1S/C22H31NO3.C11H8O3/c1-3-23(4-2)17-11-12-18-26-21(24)22(25,19-13-7-5-8-14-19)20-15-9-6-10-16-20;12-10-8-4-2-1-3-7(8)5-6-9(10)11(13)14/h5,7-8,13-14,20,25H,3-4,6,9-10,15-18H2,1-2H3;1-6,12H,(H,13,14)

HIDE SMILES / InChI

Molecular Formula C11H8O3
Molecular Weight 188.1794
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C22H31NO3
Molecular Weight 357.4864
Charge 0
Count
Stereochemistry RACEMIC
Additional Stereochemistry No
Defined Stereocenters 0 / 1
E/Z Centers 0
Optical Activity ( + / - )

Description
Curator's Comment: Description was created based on several sources, including http://www.accessdata.fda.gov/drugsatfda_docs/label/2008/017577s034,018211s017,020897s018lbl.pdf

Oxybutynin is an antispasmodic, anticholinergic agent indicated for the treatment of overactive bladder with symptoms of urge urinary incontinence, urgency, and frequency. Oxybutynin relaxes bladder smooth muscle. Oxybutynin exhibits only one-fifth of the anticholinergic activity of atropine on the rabbit detrusor muscle, but four to ten times the antispasmodic activity. Antimuscarinic activity resides predominantly in the R-isomer. Oxybutynin exerts a direct antispasmodic effect on smooth muscle and inhibits the muscarinic action of acetylcholine on smooth muscle. No blocking effects occur at skeletal neuromuscular junctions or autonomic ganglia (antinicotinic effects). By inhibiting particularily the M1 and M2 receptors of the bladder, detrusor activity is markedly decreased.

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
8.1 nM [Ki]
1.0 nM [Ki]
0.78 nM [Ki]
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
DITROPAN

Approved Use

DITROPAN® (oxybutynin chloride) is indicated for the relief of symptoms of bladder instability associated with voiding in patients with uninhibited neurogenic or reflex neurogenic bladder (i.e., urgency, frequency, urinary leakage, urge incontinence, dysuria).

Launch Date

1975
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
6.73 ng/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
OXYBUTYNIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
9.24 ng × h/mL
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
OXYBUTYNIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
2.44 h
5 mg single, oral
dose: 5 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
OXYBUTYNIN plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: FASTED
OverviewDrug as perpetrator​

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
no
no
no
no
yes [IC50 128 uM]
yes [IC50 130 uM]
yes [IC50 20 uM]
yes [IC50 27.4 uM]
yes [IC50 7.7 uM]
yes [IC50 9.5 uM]
yes
yes
Drug as victim

Drug as victim

TargetModalityActivityMetaboliteClinical evidence
major
yes (co-administration study)
Comment: itraconazole increased oxybutynin cmax, auc 2x
Page: 4.0
no
no
no
no
no
no
no
no
yes
yes
yes
Tox targets

Tox targets

TargetModalityActivityMetaboliteClinical evidence
PubMed

PubMed

TitleDatePubMed
Enuresis.
2001
Detrol LA and Diropan XL for overactive bladder.
2001 Apr 2
Nocturnal enuresis.
2001 Aug
Effects of AH-9700, (+)-pentazocine, DTG and oxybutynin on micturition in anesthetized rats with acetone-induced cystitis.
2001 Aug 24
Association between oxybutynin and neuropsychiatric adverse effects not confirmed in daily practice.
2001 Feb
Intravesical oxybutynin for treating incontinence resulting from an overactive detrusor.
2001 Jun
A semiparametric deconvolution model to establish in vivo-in vitro correlation applied to OROS oxybutynin.
2001 Jun
Cost effectiveness and quality of life considerations in the treatment of patients with overactive bladder.
2001 Mar
Overactive bladder: optimizing quality of care.
2001 Mar
Side-effects of oral or intravesical oxybutynin chloride in children with spina bifida.
2001 May
Tolterodine: superior tolerability than and comparable efficacy to oxybutynin in individuals 50 years old or older with overactive bladder: a randomized controlled trial.
2001 May
Efficacy, tolerability and safety profile of propiverine in the treatment of the overactive bladder (non-neurogenic and neurogenic).
2001 Nov
Oxybutynin and the overactive bladder.
2001 Nov
Identification of muscarinic receptor subtypes of cultured smooth muscle cells and tissue of human bladder body.
2001 Oct
Tolterodine: a clinical review.
2001 Oct
Effect of OROS controlled-release delivery on the pharmacokinetics and pharmacodynamics of oxybutynin chloride.
2001 Oct
Treatment of childhood nocturnal enuresis: an examination of clinically relevant principles.
2001 Oct
Actions of the new antimuscarinic compound Lu 25-109 on isolated human and pig detrusor.
2002
M(3) receptor antagonism by the novel antimuscarinic agent solifenacin in the urinary bladder and salivary gland.
2002 Aug
Highlights of the 22nd French pharmacovigilance meeting.
2002 Feb
Medication update.
2002 Feb
Enuresis.
2002 Feb
Extractionless and sensitive method for high-throughput quantitation of cetirizine in human plasma samples by liquid chromatography-tandem mass spectrometry.
2002 Jun 25
Efficacy of botulinum-a toxin in children with detrusor hyperreflexia due to myelomeningocele: preliminary results.
2002 Mar
Pharmacotherapy of the overactive bladder and advances in drug delivery.
2002 Mar
Vesicoureteral reflux and bladder management in spinal cord injury patients.
2002 Mar
Advances in anticholinergic therapy delivery systems.
2002 May
Overactive bladder patients and role of the pharmacist.
2002 May-Jun
Treatment can lead to a long dry spell.
2002 Spring
New treatment options for overactive bladder and incontinence.
2002 Summer
Patents

Sample Use Guides

Tablets Adults: The usual dose is one 5-mg tablet two to three times a day. The maximum recommended dose is one 5-mg tablet four times a day. A lower starting dose of 2.5 mg two or three times a day is recommended for the frail elderly. Pediatric patients over 5 years of age: The usual dose is one 5-mg tablet two times a day. The maximum recommended dose is one 5-mg tablet three times a day.
Route of Administration: Oral
Oxybutynin (1 uM) significantly depressed the frequency responses to carbachol (1 uM) in Isolated strips of porcine urothelium with lamina propria.
Substance Class Chemical
Created
by admin
on Mon Mar 31 19:50:51 GMT 2025
Edited
by admin
on Mon Mar 31 19:50:51 GMT 2025
Record UNII
7425U24ZN4
Record Status Validated (UNII)
Record Version
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Name Type Language
2-Naphthalenecarboxylic acid, 1-hydroxy-, compd. with 4-(diethylamino)-2-butyn-1-yl ?-cyclohexyl-?-hydroxybenzeneacetate (1:1)
Preferred Name English
Oxybutynin xinafoate
Common Name English
Code System Code Type Description
FDA UNII
7425U24ZN4
Created by admin on Mon Mar 31 19:50:51 GMT 2025 , Edited by admin on Mon Mar 31 19:50:51 GMT 2025
PRIMARY
CAS
1447998-30-2
Created by admin on Mon Mar 31 19:50:51 GMT 2025 , Edited by admin on Mon Mar 31 19:50:51 GMT 2025
PRIMARY
PUBCHEM
53477276
Created by admin on Mon Mar 31 19:50:51 GMT 2025 , Edited by admin on Mon Mar 31 19:50:51 GMT 2025
PRIMARY
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