OXYBUTYNIN CHLORIDE

openFDA label record#

This page contains supplementary openFDA label data. For the canonical label presentation, use the corresponding DailyMed Structured Product Label.

Verified complete openFDA source JSON (canonical bytes are SHA-256 checked before publication)

Brand name
OXYBUTYNIN CHLORIDE
Generic name
OXYBUTYNIN CHLORIDE
Manufacturer
PD-Rx Pharmaceuticals, Inc.
Product type
HUMAN PRESCRIPTION DRUG
SPL set ID
3a319017-4e25-402e-8ba0-63b9f1eb707e
SPL ID
2f24ff93-475c-5845-e063-6394a90a8faa
Version
9
Effective date
2025-02-27
Source export date
2026-09-28
Source partition
7
Source file
https://download.open.fda.gov/drug/label/drug-label-0007-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-09-28/bb1af06e95bcf9567b07e56fcf3a03c0cac3c7c82ff89d4c970881174949e5b7/drug-label-0007-of-0014.json.zip
Source manifest SHA-256
cd2e66336a5cd2223fa3995098fdbdb84c6a7ee5c0a4addb236ccb22dd1e6887
Import run
20260929T050834Z
Imported at
2026-09-29 05:45:32
Harmonized routes table
Harmonized routes
ORAL

Warnings cross-check#

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warnings

WARNINGS Angioedema of the face, lips, tongue and/or larynx has been reported with oxybutynin. In some cases, angioedema occurred after the first dose. Angioedema associated with upper airway swelling may be life-threatening. If involvement of the tongue, hypopharynx, or larynx occurs, oxybutynin should be promptly discontinued and appropriate therapy and/or measures necessary to ensure a patent airway should be promptly provided.

Adverse reactions cross-check#

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adverse reactions

ADVERSE REACTIONS The safety and efficacy of oxybutynin chloride was evaluated in a total of 199 patients in three clinical trials. These participants were treated with oxybutynin chloride 5 to 20 mg/day for up to 6 weeks. Table 3 shows the incidence of adverse events judged by investigators to be at least possibly related to treatment and reported by at least 5% of patients. Table 3 Incidence (%) of Adverse Events Reported by ≥ 5% of Patients Using oxybutynin chloride (5 - 20 mg/day) Body System Adverse Event OXYBUTYNIN CHLORIDE Infections and Infestations Urinary tract infection 6.5% Psychiatric Disorders Insomnia 5.5% Nervousness 6.5% Nervous System Disorders Dizziness 16.6% Somnolence 14.0% Headache 7.5% Eye Disorders Blurred vision 9.6% Gastrointestinal Disorders Dry mouth 71.4% Constipation 15.1% Nausea 11.6% Dyspepsia 6.0% Renal and Urinary Disorders Urinary Hesitation 8.5% Urinary Retention 6.0% The most common adverse events reported by patients receiving oxybutynin chloride 5 to 20 mg/day were the expected side effects of anticholinergic agents. The incidence of dry mouth was dose-related. In addition, the following adverse events were reported by 1 to <5% of patients using oxybutynin chloride (5 to 20 mg/day) in all studies. Infections and Infestations: nasopharyngitis, upper respiratory tract infection, bronchitis, cystitis, fungal infection; Metabolism and Nutrition Disorders: fluid retention; Psychiatric Disorders: confusional state; Nervous System Disorders: dysgeusia, sinus headache; Eye Disorders: keratoconjunctivitis sicca, eye irritation; Cardiac Disorders: palpitations, sinus arrhythmia; Vascular Disorders: flushing; Respiratory, Thoracic and Mediastinal Disorders: nasal dryness, cough, pharyngolaryngeal pain, dry throat, sinus congestion, hoarseness, asthma, nasal congestion; Gastrointestinal Disorders: diarrhea, abdominal pain, loose stools, flatulence, vomiting, abdominal pain upper, dysphagia, aptyalism, eructation, tongue coated; Skin and Subcutaneous Tissue Disorders: dry skin, pruritis; Musculoskeletal and Connective Tissue Disorders: back pain, arthralgia, pain in extremity, flank pain; Renal and Urinary Disorders: dysuria, pollakiuria; General Disorders and Administration Site Conditions: fatigue, edema peripheral, asthenia, pain, thirst, edema; Investigations: blood pressure increased, blood glucose increased, blood pressure decreased; Injury, Poisoning, and Procedural Complications: fall. Postmarketing Surveillance Because postmarketing adverse events are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. The following additional adverse events have been reported from worldwide postmarketing experience with Oral oxybutynin chloride: Psychiatric Disorders: psychotic disorder, agitation, hallucinations, memory impairment; Nervous System Disorders: convulsions; Eye Disorders: cycloplegia, mydriasis, glaucoma; Cardiac Disorders: tachycardia, QT interval prolongation; chest discomfort; Gastrointestinal Disorders: decreased gastrointestinal motility; frequent bowel movements; Skin and Subcutaneous Tissue Disorders: rash, decreased sweating; Renal and Urinary Disorders: impotence; Reproductive System and Breast Disorders: Suppression of lactation; General Disorders and Administration Site Conditions: hypersensitivity reactions, including angioedema with airway obstruction, urticaria, and face edema; rare anaphylactic reactions requiring hospitalization for emergency treatment; Metabolism and Nutrition Disorders : anorexia; Respiratory, Thoracic and Mediastinal Disorders : dysphonia To report SUSPECTED ADVERSE REACTIONS, contact Rising Pharma Holdings, Inc. at 1-844-874-7464 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

adverse reactions table

<table cellspacing="0" cellpadding="0" border="0" width="100%"><tbody><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> <content styleCode="bold">Body System</content> </td><td align="center" styleCode="Rrule" valign="top"> <content styleCode="bold">Adverse Event</content> </td><td align="center" styleCode="Rrule" valign="top"> <content styleCode="bold">OXYBUTYNIN CHLORIDE</content> </td></tr><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> Infections and Infestations </td><td styleCode="Rrule" valign="top"> Urinary tract infection </td><td styleCode="Rrule" valign="top"> 6.5% </td></tr><tr styleCode="Botrule"><td rowspan="2" styleCode="Lrule Rrule" valign="top"> Psychiatric Disorders </td><td styleCode="Rrule" valign="top"> Insomnia </td><td styleCode="Rrule" valign="top"> 5.5% </td></tr><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> Nervousness </td><td styleCode="Rrule" valign="top"> 6.5% </td></tr><tr styleCode="Botrule"><td rowspan="3" styleCode="Lrule Rrule" valign="top"> Nervous System Disorders </td><td styleCode="Rrule" valign="top"> Dizziness </td><td styleCode="Rrule" valign="top"> 16.6% </td></tr><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> Somnolence </td><td styleCode="Rrule" valign="top"> 14.0% </td></tr><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> Headache </td><td styleCode="Rrule" valign="top"> 7.5% </td></tr><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> Eye Disorders </td><td styleCode="Rrule" valign="top"> Blurred vision </td><td styleCode="Rrule" valign="top"> 9.6% </td></tr><tr styleCode="Botrule"><td rowspan="4" styleCode="Lrule Rrule" valign="top"> Gastrointestinal Disorders </td><td styleCode="Rrule" valign="top"> Dry mouth </td><td styleCode="Rrule" valign="top"> 71.4% </td></tr><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> Constipation </td><td styleCode="Rrule" valign="top"> 15.1% </td></tr><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> Nausea </td><td styleCode="Rrule" valign="top"> 11.6% </td></tr><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> Dyspepsia </td><td styleCode="Rrule" valign="top"> 6.0% </td></tr><tr styleCode="Botrule"><td styleCode="Lrule Rrule" valign="top"> Renal and Urinary Disorders </td><td styleCode="Rrule" valign="top"> Urinary Hesitation </td><td styleCode="Rrule" valign="top"> 8.5% </td></tr><tr><td styleCode="Lrule Rrule" valign="top"> </td><td styleCode="Rrule" valign="top"> Urinary Retention </td><td styleCode="Rrule" valign="top"> 6.0% </td></tr></tbody></table>

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.