Oxybutynin Chloride

openFDA label record#

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Brand name
Oxybutynin Chloride
Generic name
OXYBUTYNIN CHLORIDE
Manufacturer
Aphena Pharma Solutions - Tennessee, LLC
Product type
HUMAN PRESCRIPTION DRUG
SPL set ID
2425f49f-ade3-5178-e063-6294a90adfac
SPL ID
2425de26-9d88-2a5d-e063-6294a90acaa1
Version
1
Effective date
2024-10-10
Source export date
2026-08-01
Source partition
10
Source file
https://download.open.fda.gov/drug/label/drug-label-0010-of-0014.json.zip
Source object key
raw/openfda/drug-label/2026-08-01/928e480b2a9ec5fd356ebc3e5dcca70f0f57b8a051cfbb174a4421de39bb77a2/drug-label-0010-of-0014.json.zip
Source manifest SHA-256
bdd1454d0606b622b70458a306b8a10d8a8787db06fd9f46e69c7f7a4524b630
Import run
20260801T225920Z
Imported at
2026-08-01 23:24:30
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 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 Nervousness 5.5% 6.5% Nervous System Disorders Dizziness Somnolence Headache 16.6% 14.0% 7.5% Eye Disorders Blurred vision 9.6% Gastrointestinal Disorders Dry mouth Constipation Nausea Dyspepsia 71.4% 15.1% 11.6% 6.0% Renal and Urinary Disorders Urinary Hesitation Urinary Retention 8.5% 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 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 AvKARE at 1-855-361-3993 or go to www.avkare.com or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

adverse reactions table

<table width="639" ID="ID85" styleCode="Noautorules"><col width="213"/><col width="213"/><col width="213"/><tbody><tr><td align="left" styleCode="Lrule Toprule Botrule Rrule" valign="top"><content styleCode="bold">Body System</content> </td><td align="left" styleCode="Toprule Botrule Rrule" valign="top"><content styleCode="bold">Adverse Event</content> </td><td align="center" styleCode="Toprule Botrule Rrule" valign="top"><content styleCode="bold">Oxybutynin</content> <content styleCode="bold">Chloride</content> <content styleCode="bold">(5 to 20 mg/day)</content> <content styleCode="bold">(n=199)</content> </td></tr><tr><td align="left" styleCode="Lrule Botrule Rrule" valign="top">Infections and Infestations </td><td align="left" styleCode="Botrule Rrule" valign="top">Urinary tract infection </td><td align="center" styleCode="Botrule Rrule" valign="top">6.5% </td></tr><tr><td align="left" styleCode="Lrule Botrule Rrule" valign="top">Psychiatric Disorders </td><td align="left" styleCode="Botrule Rrule" valign="top">Insomnia Nervousness </td><td align="center" styleCode="Botrule Rrule" valign="top">5.5% 6.5% </td></tr><tr><td align="left" styleCode="Lrule Botrule Rrule" valign="top">Nervous System Disorders </td><td align="left" styleCode="Botrule Rrule" valign="top">Dizziness Somnolence Headache </td><td align="center" styleCode="Botrule Rrule" valign="top">16.6% 14.0% 7.5% </td></tr><tr><td align="left" styleCode="Lrule Botrule Rrule" valign="top">Eye Disorders </td><td align="left" styleCode="Botrule Rrule" valign="top">Blurred vision </td><td align="center" styleCode="Botrule Rrule" valign="top">9.6% </td></tr><tr><td align="left" styleCode="Lrule Botrule Rrule" valign="top">Gastrointestinal Disorders </td><td align="left" styleCode="Botrule Rrule" valign="top">Dry mouth Constipation Nausea Dyspepsia </td><td align="center" styleCode="Botrule Rrule" valign="top">71.4% 15.1% 11.6% 6.0% </td></tr><tr><td align="left" styleCode="Lrule Botrule Rrule" valign="top">Renal and Urinary Disorders </td><td align="left" styleCode="Botrule Rrule" valign="top">Urinary Hesitation Urinary Retention </td><td align="center" styleCode="Botrule Rrule" valign="top">8.5% 6.0% </td></tr></tbody></table>