FDA label 9236c367-4765-43a0-a24e-284ea2d9f000

openFDA label record#

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

SPL set ID
c687e86b-1dc2-4f9c-a032-30f626f54d90
SPL ID
9236c367-4765-43a0-a24e-284ea2d9f000
Version
1
Effective date
2018-08-13
Source export date
2026-10-12
Source partition
13
Source file
https://download.open.fda.gov/drug/label/drug-label-0013-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-10-12/b8dac220ac9fc8ffb4d86c6e00ece30169fc4575ca0cc92e5c9ce1a524fb0249/drug-label-0013-of-0014.json.zip
Source manifest SHA-256
7e6b178df8f32cac9a78e0f5d09c588344509b04fe41effb1dde9102e2a45be6
Import run
20261013T011858Z
Imported at
2026-10-13 03:02:11

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 mg/day 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 to 20 mg/day) Body System Adverse Event Oxybutynin Chloride (5 to 20 mg/day) (n=199) 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 oxybutynin chloride: Psychiatric Disorders: psychotic disorder, agitation, hallucination, 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 movement 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

adverse reactions table

<table> <caption>Table 3 Incidence (%) of Adverse Events Reported by &#x2265;5% of Patients Using Oxybutynin Chloride (5 to 20 mg/day)</caption> <col/> <col/> <col/> <thead> <tr> <th valign="top" styleCode=" Lrule "> Body System</th> <th valign="top"> Adverse Event</th> <th align="center" valign="top" styleCode=" Rrule "> Oxybutynin Chloride (5 to 20 mg/day) (n=199)</th> </tr> </thead> <tbody> <tr> <td valign="top" styleCode=" Lrule ">Infections and Infestations</td> <td valign="top">Urinary tract infection</td> <td align="center" valign="top" styleCode=" Rrule ">6.5%</td> </tr> <tr> <td valign="top" styleCode=" Lrule ">Psychiatric Disorders</td> <td valign="top">Insomnia</td> <td align="center" valign="top" styleCode=" Rrule ">5.5%</td> </tr> <tr> <td valign="top" styleCode=" Lrule "/> <td valign="top">Nervousness</td> <td align="center" valign="top" styleCode=" Rrule ">6.5%</td> </tr> <tr> <td valign="top" styleCode=" Lrule ">Nervous System Disorders</td> <td valign="top">Dizziness</td> <td align="center" valign="top" styleCode=" Rrule ">16.6%</td> </tr> <tr> <td valign="top" styleCode=" Lrule "/> <td valign="top">Somnolence</td> <td align="center" valign="top" styleCode=" Rrule ">14.0%</td> </tr> <tr> <td valign="top" styleCode=" Lrule "/> <td valign="top">Headache</td> <td align="center" valign="top" styleCode=" Rrule ">7.5%</td> </tr> <tr> <td valign="top" styleCode=" Lrule ">Eye Disorders</td> <td valign="top">Blurred vision</td> <td align="center" valign="top" styleCode=" Rrule ">9.6%</td> </tr> <tr> <td valign="top" styleCode=" Lrule ">Gastrointestinal Disorders</td> <td valign="top">Dry mouth</td> <td align="center" valign="top" styleCode=" Rrule ">71.4%</td> </tr> <tr> <td valign="top" styleCode=" Lrule "/> <td valign="top">Constipation</td> <td align="center" valign="top" styleCode=" Rrule ">15.1%</td> </tr> <tr> <td valign="top" styleCode=" Lrule "/> <td valign="top">Nausea</td> <td align="center" valign="top" styleCode=" Rrule ">11.6%</td> </tr> <tr> <td valign="top" styleCode=" Lrule "/> <td valign="top">Dyspepsia</td> <td align="center" valign="top" styleCode=" Rrule ">6.0%</td> </tr> <tr> <td valign="top" styleCode=" Lrule ">Renal and Urinary Disorders</td> <td valign="top">Urinary Hesitation</td> <td align="center" valign="top" styleCode=" Rrule ">8.5%</td> </tr> <tr> <td valign="top" styleCode=" Lrule "/> <td valign="top">Urinary Retention</td> <td align="center" valign="top" styleCode=" Rrule ">6.0%</td> </tr> </tbody> </table>

Reported adverse events (FAERS/openFDA)#

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