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oxybutynin immediate release

Astellas Pharma Inc · FDA-approved active Small molecule ✓ Verified Jun 2026

oxybutynin immediate release is a Anticholinergic Small molecule drug developed by Astellas Pharma Inc. It is currently FDA-approved.

Oxybutynin is an anticholinergic that blocks muscarinic receptors in the bladder, leading to relaxation of the detrusor muscle and increased bladder capacity.

Oxybutynin immediate release is used to treat neurogenic detrusor overactivity, a condition associated with spinal cord injuries. It is also studied for its potential use in treating detrusor hyperreflexia and urinary bladder conditions in individuals with spinal cord injuries.

At a glance

Generic nameoxybutynin immediate release
SponsorAstellas Pharma Inc
Drug classAnticholinergic
TargetMuscarinic acetylcholine receptors (M2 and M3)
ModalitySmall molecule
Therapeutic areaUrology
PhaseFDA-approved

Mechanism of action

By blocking muscarinic receptors, oxybutynin reduces the involuntary contractions of the bladder muscle, which helps to control symptoms of overactive bladder.

Approved indications

Common side effects

Drug interactions

Key clinical trials

Patents

PatentExpiryType
US5434174A

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results
FDA Orange BookPatents + exclusivity

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Frequently asked questions about oxybutynin immediate release

What is oxybutynin immediate release?

oxybutynin immediate release is a Anticholinergic drug developed by Astellas Pharma Inc.

How does oxybutynin immediate release work?

Oxybutynin is an anticholinergic that blocks muscarinic receptors in the bladder, leading to relaxation of the detrusor muscle and increased bladder capacity.

Who makes oxybutynin immediate release?

oxybutynin immediate release is developed and marketed by Astellas Pharma Inc (see full Astellas Pharma Inc pipeline at /company/astellas).

What drug class is oxybutynin immediate release in?

oxybutynin immediate release belongs to the Anticholinergic class. See all Anticholinergic drugs at /class/anticholinergic.

What development phase is oxybutynin immediate release in?

oxybutynin immediate release is FDA-approved (marketed).

What are the side effects of oxybutynin immediate release?

Common side effects of oxybutynin immediate release include Dry mouth, Constipation, Dizziness, Headache, Nausea, Fatigue.

What does oxybutynin immediate release target?

oxybutynin immediate release targets Muscarinic acetylcholine receptors (M2 and M3) and is a Anticholinergic.

Related

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing