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OXYTROL®
(oxybutynin) Transdermal System
OXYTROL (oxybutynin transdermal system) is designed to deliver oxybutynin over a 3-to 4day interval after application to intact skin. OXYTROL is available as a 39 cm2 system containing 36 mg of oxybutynin. OXYTROL has a nominal in vivo delivery rate of 3.9 mg oxybutynin per day through skin of average permeability (inter-individual variation in skin permeability is approximately 20%).
Oxybutynin is an antispasmodic, anticholinergic agent. Oxybutynin is administered as a racemate of R-and S-isomers. Chemically, oxybutynin is d, l (racemic) 4-diethylamino-2butynyl phenylcyclohexylglycolate. The empirical formula of oxybutynin is C22H31NO3. Its structural formula is:
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Oxybutynin is a white powder with a molecular weight of 357. It is soluble in alcohol, but relatively insoluble in water.
OXYTROL is a matrix-type transdermal system composed of three layers as illustrated in Figure 1. Layer 1 (Backing Film) is a thin flexible polyester/ethylene-vinyl acetate film that provides the matrix system with occlusivity and physical integrity and protects the adhesive/drug layer. Layer 2 (Adhesive/Drug Layer) is a cast film of acrylic adhesive containing oxybutynin and triacetin, USP. Layer 3 (Release Liner) is two overlapped siliconized polyester strips that are peeled off and discarded by the patient prior to applying the matrix system.
Figure 1: Side and top views of the OXYTROL system
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OXYTROL is a muscarinic antagonist indicated for the treatment of overactive bladder in men with symptoms of urge urinary incontinence, urgency, and frequency.
OXYTROL 3.9 mg/day should be applied to dry, intact skin on the abdomen, hip, or buttock twice weekly (every 3 or 4 days). A new application site should be selected with each new system to avoid re-application to the same site within 7 days.
Transdermal System: 3.9 mg/day
Unit Dose: Heat sealed pouch containing 1 OXYTROL (oxybutynin transdermal system).
Each 39 cm2 system imprinted with “OXYTROL 3.9 mg/day” contains 36 mg of oxybutynin for nominal delivery of 3.9 mg oxybutynin per day when dosed in a twice weekly regimen.
Patient Calendar Box of 8 Systems (NDC 0023-6153-08)
Store at 20-25°C (68-77°F). [See USP controlled room temperature.] Protect from moisture and humidity. Do not store outside the sealed pouch. Apply immediately after removal from the protective pouch. Discard used OXYTROL in household trash in a manner that prevents accidental application or ingestion by children, pets, or others.
Keep out of reach of children.
Distributed By: Allergan USA, Inc. Irvine, CA 92612. Revised: Oct 2017.
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.
The safety of OXYTROL was evaluated in a total of 417 patients who participated in two clinical efficacy and safety studies and an open-label extension. Additional safety information was collected in earlier phase trials. In the two pivotal studies, a total of 246 patients received OXYTROL during the 12-week treatment periods. A total of 411 patients entered the open-label extension and of those, 65 patients and 52 patients received OXYTROL for at least 24 weeks and at least 36 weeks, respectively. No deaths were reported during treatment. No serious adverse events related to treatment were reported.
Adverse reactions reported in the pivotal trials are summarized in Tables 1 and 2 below.
Table 1: Number (%) of adverse reactions occurring in ≥ 2% of OXYTROL-treated patients and greater in the OXYTROL group than in the placebo group (Study 1).
| Adverse Reaction | Placebo (N = 132) |
OXYTROL (3.9 mg/day) (N = 125) |
||
| N | % | N | % | |
| Application site pruritus | 8 | 6.1% | 21 | 16.8% |
| Dry mouth | 11 | 8.3% | 12 | 9.6% |
| Application site erythema | 3 | 2.3% | 7 | 5.6% |
| Application site vesicles | 0 | 0.0% | 4 | 3.2% |
| Diarrhea | 3 | 2.3% | 4 | 3.2% |
| Dysuria | 0 | 0.0% | 3 | 2.4% |
Table 2: Number (%) of adverse reactions occurring in ≥ 2% of OXYTROL-treated patients and greater in the OXYTROL group than in the placebo group (Study 2).
| Adverse Reaction | Placebo (N = 117) |
OXYTROL (3.9 mg/day) (N = 121) |
||
| N | % | N | % | |
| Application site pruritus | 5 | 4.3% | 17 | 14.0% |
| Application site erythema | 2 | 1.7% | 10 | 8.3% |
| Dry mouth | 2 | 1.7% | 5 | 4.1% |
| Constipation | 0 | 0.0% | 4 | 3.3% |
| Application site rash | 1 | 0.9% | 4 | 3.3% |
| Application site macules | 0 | 0.0% | 3 | 2.5% |
| Abnormal vision | 0 | 0.0% | 3 | 2.5% |
Most adverse reactions were described as mild or moderate in intensity. Severe application site reactions were reported by 6.4% of OXYTROL-treated patients in Study 1 and by 5.0% of OXYTROL-treated patients in Study 2.
Adverse reactions that resulted in discontinuation were reported by 11.2% of OXYTROL- treated patients in Study 1 and 10.7% of OXYTROL-treated patients in Study 2. Most of these discontinuations were due to application site reaction. In the two pivotal studies, no patient discontinued OXYTROL treatment due to dry mouth.
In the open-label extension, the most common treatment-related adverse reactions were: application site pruritus, application site erythema, and dry mouth.
The following adverse reactions have been identified during post approval use of OXYTROL. Because these reactions 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.
Nervous System Disorders: Memory impairment, dizziness, somnolence, confusion
Psychiatric Disorders: Delirium, hallucinations
No specific drug-drug interaction studies have been performed with OXYTROL.
The concomitant use of OXYTROL with other anticholinergic drugs, or with other agents that produce dry mouth, constipation, somnolence, and/or other anticholinergic-like effects may increase the frequency and/or severity of such effects. Anticholinergic agents may potentially alter the absorption of some concomitantly administered drugs due to anticholinergic effects on gastrointestinal motility.
Pharmacokinetic studies have not been performed with patients concomitantly receiving cytochrome P450 enzyme inhibitors, such as antimycotic agents (e.g., ketoconazole, itraconazole, and miconazole) or macrolide antibiotics (e.g., erythromycin and clarithromycin).
Included as part of the "PRECAUTIONS" Section
Administer OXYTROL with caution in patients with clinically significant bladder outflow obstruction because of the risk of urinary retention [see CONTRAINDICATIONS].
Administer OXYTROL with caution to patients with gastrointestinal obstructive disorders because of the risk of gastric retention [see CONTRAINDICATIONS].
OXYTROL, like other anticholinergic drugs, may decrease gastrointestinal motility and should be used with caution in patients with conditions such as ulcerative colitis or intestinal atony.
OXYTROL should be used with caution in patients who have hiatus hernia/gastroesophageal reflux and/or who are concurrently taking drugs (such as bisphosphonates) that can cause or exacerbate esophagitis.
Products containing oxybutynin are associated with anticholinergic central nervous system (CNS) effects. A variety of CNS anticholinergic effects have been reported, including headache, dizziness, somnolence, confusion and hallucinations [see Adverse Events]. Patients should be monitored for signs of anticholinergic CNS effects, particularly after beginning treatment. Advise patients not to drive or operate heavy machinery until they know how OXYTROL affects them. If a patient experiences anticholinergic CNS effects, drug discontinuation should be considered.
Angioedema requiring hospitalization and emergency medical treatment has occurred with the first or subsequent doses of oral oxybutynin. In the event of angioedema, OXYTROL should be discontinued and appropriate therapy promptly provided.
Patients who develop skin hypersensitivity to OXYTROL should discontinue drug treatment.
Avoid use of OXYTROL in patients with myasthenia gravis, a disease characterized by decreased cholinergic activity at the neuromuscular junction. If experiencing exacerbation of symptoms of myasthenia gravis, oxybutynin-containing product should be discontinued and appropriate therapy promptly provided.
See FDA-Approved Patient Labeling (PATIENT INFORMATION and Instructions for Use)
Inform patients that OXYTROL should be applied to dry, intact skin on the abdomen, hip, or buttock and not be applied to areas that have been treated with oils, lotions or powders. The patch should not be exposed to sunlight. Contact with water while bathing, swimming, showering or exercising will not change the effect of OXYTROL.
A new application site should be selected with each new system to avoid re-application to the same site within 7 days. Inform patients to try to change the patch on the same 2 days each week and that the package of OXYTROL has a calendar checklist printed on the back to remind patients of their schedule. Inform patients to avoid rubbing the patch area during bathing, swimming, showering or exercising. Inform patients that details on use of the system are explained in the Patient Information Leaflet.
Inform patients to discard used OXYTROL in household trash in a manner that prevents accidental application or ingestion by children, pets, or others. Inform patients to keep out of reach of children.
Patients should be informed that anticholinergic (antimuscarinic) agents, such as OXYTROL, may produce adverse reactions related to anticholinergic pharmacological activity including:
A 24-month study in rats at dosages of oxybutynin chloride of 20, 80 and 160 mg/kg showed no evidence of carcinogenicity. These doses are approximately 6, 25 and 50 times the maximum exposure in humans taking an oral dose based on body surface area.
Oxybutynin chloride showed no increase of mutagenic activity when tested in Schizosaccharomyces pompholiciformis, Saccharomyces cerevisiae, and Salmonella typhimurium test systems. Reproduction studies with oxybutynin chloride in the mouse, rat, hamster, and rabbit showed no definite evidence of impaired fertility.
Risk Summary There are no studies with topical or oral oxybutynin use in pregnant women to inform a drug associated risk for birth defects or miscarriage. No adverse developmental outcomes were observed in animal reproduction studies when oxybutynin chloride was administered to pregnant rats and rabbits during organogenesis at approximately 50 and 1 times, respectively, the maximum human dose based on body surface area (see Data)
In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20% respectively.
Animal Data
Subcutaneous administration of oxybutynin chloride to rats at doses up to 25 mg/kg (approximately 50 times the human exposure based on surface area) and to rabbits at doses up to 0.4 mg/kg (approximately 1 times the human exposure based on body surface area) throughout the period of organogenesis revealed no evidence of harm to the fetus.
Risk Summary There is no information on the presence of oxybutynin in human milk, the effects on the breastfed child, or the effects on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for OXYTROL and any potential adverse effects on the breastfed child from OXYTROL or from the underlying maternal condition.
The safety and efficacy of OXYTROL in pediatric patients have not been established.
Forty-nine percent of OXYTROL-treated patients in the clinical studies were at least 65 years of age. No overall differences in safety or effectiveness were observed between these patients and younger patients, and other reported clinical experience has not identified differences in response between elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out [see CLINICAL PHARMACOLOGY].
The plasma concentration of oxybutynin declines within 1 to 2 hours after removal of transdermal system(s). Patients should be monitored until symptoms resolve. Overdosage with oxybutynin has been associated with anticholinergic effects including CNS excitation, flushing, fever, dehydration, cardiac arrhythmia, vomiting, and urinary retention. Ingestion of 100 mg oral oxybutynin chloride in association with alcohol has been reported in a 13 year old boy who experienced memory loss, and in a 34 year old woman who developed stupor, followed by disorientation and agitation on awakening, dilated pupils, dry skin, cardiac arrhythmia, and retention of urine. Both patients recovered fully with treatment directed at their symptoms.
The use of OXYTROL is contraindicated in the following conditions:
The free base form of oxybutynin is pharmacologically equivalent to oxybutynin hydrochloride. Oxybutynin acts as a competitive antagonist of acetylcholine at postganglionic muscarinic receptors, resulting in relaxation of bladder smooth muscle. In patients with conditions characterized by involuntary detrusor contractions, cystometric studies have demonstrated that oxybutynin increases maximum urinary bladder capacity and increases the volume to first detrusor contraction.
Oxybutynin is a racemic (50:50) mixture of R-and S-isomers. Antimuscarinic activity resides predominantly in the R-isomer. The active metabolite, N-desethyloxybutynin, has pharmacological activity on the human detrusor muscle that is similar to that of oxybutynin in in vitro studies.
Oxybutynin is transported across intact skin and into the systemic circulation by passive diffusion across the stratum corneum. The average daily dose of oxybutynin absorbed from the 39 cm2 OXYTROL system is 3.9 mg. The average (SD) nominal dose, 0.10 (0.02) mg oxybutynin per cm2 surface area, was obtained from analysis of residual oxybutynin content of systems worn over a continuous 4-day period during 303 separate occasions in 76 healthy volunteers. Following application of the first OXYTROL 3.9 mg/day system, oxybutynin plasma concentrations increase for approximately 24 to 48 hours, reaching average maximum concentrations of 3 to 4 ng/mL. Thereafter, steady concentrations are maintained for up to 96 hours. Absorption of oxybutynin is bioequivalent when OXYTROL is applied to the abdomen, buttocks, or hip. Average plasma concentrations measured during a randomized, crossover study of the three recommended application sites in 24 healthy men and women are shown in Figure 2.
Figure 2: Average plasma oxybutynin concentrations (Cp) in 24 healthy male and female volunteers during single-dose application of OXYTROL 3.9 mg/day to the abdomen, buttock, and hip (System removal at 96 hours).
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Steady-state conditions are reached during the second OXYTROL application. Average steady-state plasma concentrations were 3.1 ng/mL for oxybutynin and 3.8 ng/mL for Ndesethyloxybutynin (Figure 3). Table 3 provides a summary of pharmacokinetic parameters of oxybutynin in healthy volunteers after single and multiple applications of OXYTROL.
Figure 3: Average (SEM) steady-state oxybutynin and N-desethyloxybutynin plasma concentrations (Cp) measured in 13 healthy volunteers following the second transdermal system application in a multiple-dose, randomized, crossover study.
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Table 3: Mean (SD) oxybutynin pharmacokinetic parameters from single and multiple dose studies in healthy men and women volunteers after application of OXYTROL on the abdomen.
| Dosing | Oxybutynin | |||
| Cmax (SD) (ng/mL) |
Tmax 1 (hr) |
Cavg (SD) (ng/mL) |
AUC (SD) (ng/mLxh) |
|
| Single | 3.0 (0.8) | 48 | - | 245 (59)2 |
| 3.4 (1.1) | 36 | - | 279 (99)2 | |
| Multiple | 6.6 (2.4) | 10 | 4.2 (1.1) | 408 (108)3 |
| 4.2 (1.0) | 28 | 3.1 (0.7) | 259 (57)4 | |
| 1 Tmax given as median 2 AUCinf 3AUC0-96 4 AUC0-84 |
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Oxybutynin is widely distributed in body tissues following systemic absorption. The volume of distribution was estimated to be 193 L after intravenous administration of 5 mg oxybutynin chloride.
Oxybutynin is metabolized primarily by the cytochrome P450 enzyme systems, particularly CYP3A4, found mostly in the liver and gut wall. Metabolites include phenylcyclohexylglycolic acid, which is pharmacologically inactive, and N-desethyloxybutynin, which is pharmacologically active.
After oral administration of oxybutynin, pre-systemic first-pass metabolism results in an oral bioavailability of approximately 6% and higher plasma concentration of the N-desethyl metabolite compared to oxybutynin (see Figure 4). The plasma concentration area under the time-concentration curve (AUC) ratio of N-desethyl metabolite to parent compound following a single 5 mg oral dose of oxybutynin chloride was 11.9:1.
Transdermal administration of oxybutynin bypasses first-pass gastrointestinal and hepatic metabolism, reducing the formation of the N-desethyl metabolite (see Figure 4). Only small amounts of CYP3A4 are found in skin, limiting pre-systemic metabolism during transdermal absorption. The resulting plasma concentration AUC ratio of N-desethyl metabolite to parent compound following multiple OXYTROL applications was 1.3:1.
Figure 4: Average plasma concentrations (Cp) measured after a single, 96-hour application of the OXYTROL 3.9 mg/day system (AUCinf/96) and a single, 5 mg, oral immediate-release dose of oxybutynin chloride (AUCinf/8) in 16 healthy male and female volunteers.
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Following intravenous administration, the elimination half-life of oxybutynin is approximately 2 hours. Following removal of OXYTROL, plasma concentrations of oxybutynin and Ndesethyloxybutynin decline with an apparent half-life of approximately 7 to 8 hours.
Oxybutynin is extensively metabolized by the liver, with less than 0.1% of the administered dose excreted unchanged in the urine. Also, less than 0.1% of the administered dose is excreted as the metabolite N-desethyloxybutynin.
The pharmacokinetics of oxybutynin and N-desethyloxybutynin were similar in older and younger patients.
The pharmacokinetics of oxybutynin and N-desethyloxybutynin were not evaluated in individuals younger than 18 years of age.
There were no significant differences in the pharmacokinetics of oxybutynin in healthy male and female volunteers following application of OXYTROL.
Available data suggest that there are no significant differences in the pharmacokinetics of oxybutynin based on race in healthy volunteers following administration of OXYTROL. Japanese volunteers demonstrated a somewhat lower metabolism of oxybutynin to N-desethyloxybutynin compared to Caucasian volunteers.
The efficacy and safety of OXYTROL were evaluated in patients with urge urinary incontinence in two controlled studies and one open-label extension. Study 1 was a placebo controlled study,comparing the safety and efficacy of OXYTROL at dose levels of 1.3, 2.6, and 3.9 mg/day to placebo in 520 patients. Open-label treatment was available for patients completing the study. Study 2 was a study comparing the safety and efficacy of OXYTROL 3.9 mg/day versus active and placebo controls in 361 patients.
Study 1 was a randomized, double-blind, placebo-controlled, parallel group study of three dose levels of OXYTROL conducted in 520 patients. The 12-week double-blind treatment included an OXYTROL dose of 3.9 mg/day or matching placebo. An open-label, dose titration treatment extension allowed continued treatment for up to an additional 40 weeks for patients completing the double-blind period. The majority of patients were Caucasian (91%) and female (92%) with a mean age of 61 years (range, 20 to 88 years). Entry criteria required that patients have urge or mixed incontinence (with a predominance of urge), urge incontinence episodes of ≥ 10 per week, and ≥ 8 micturitions per day. The patient’s medical history and a urinary diary during the treatment-free baseline period confirmed the diagnosis of urge incontinence. Approximately 80% of patients had no prior pharmacological treatment for incontinence. Changes in weekly incontinence episodes, urinary frequency, and urinary void volume between placebo and active treatment groups are summarized in Table 4.
Table 4: Mean and median change from baseline to end of treatment (Week 12 or last observation carried forward) in incontinence episodes, urinary frequency, and urinary void volume in patients treated with OXYTROL 3.9 mg/day or placebo for 12 weeks (Study 1).
| Parameter | Placebo (N = 127) |
OXYTROL 3.9 mg/day (N = 120) |
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| Mean (SD) | Median | Mean (SD) | Median | |
| Weekly Incontinence Episodes | ||||
| Baseline | 37.7 (24.0) | 30 | 34.3 (18.2) | 31 |
| Reduction | 19.2 (21.4) | 15 | 21.0 (17.1) | 19 |
| p value vs. placebo | - | 0.0265* | ||
| Daily Urinary Frequency | ||||
| Baseline | 12.3 (3.5) | 11 | 11.8 (3.1) | 11 |
| Reduction | 1.6 (3.0) | 1 | 2.2 (2.5) | 2 |
| p value vs. placebo | - | 0.0313* | ||
| Urinary Void Volume (mL) | ||||
| Baseline | 175.9 (69.5) | 166.5 | 171.6 (65.1) | 168 |
| Increase | 10.5 (56.9) | 5.5 | 31.6 (65.6) | 26 |
| p value vs. placebo | - | 0.0009 | ||
| *Comparison significant if p < 0.05 **Comparison significant if p ≤ 0.0167 |
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Study 2 was a randomized, double-blind, study of OXYTROL 3.9 mg/day versus active and placebo controls conducted in 361 patients. The 12-week double-blind treatment included an OXYTROL dose of 3.9 mg/day, an active comparator, and placebo. The majority of patients were Caucasian (95%) and female (93%) with a mean age of 64 years (range, 18 to 89 years). Entry criteria required that all patients have urge or mixed incontinence (with a predominance of urge) and had achieved a beneficial response from the anticholinergic treatment they were using at the time of study entry. The average duration of prior pharmacological treatment was greater than 2 years. The patient’s medical history and a urinary diary during the treatment-free baseline period confirmed the diagnosis of urge incontinence. Changes in daily incontinence episodes, urinary frequency, and urinary void volume between placebo and active treatment groups are summarized in Table 5.
Table 5: Mean and median change from baseline to end of treatment (Week 12 or last observation carried forward) in incontinence episodes, urinary frequency, and urinary void volume in patients treated with OXYTROL 3.9 mg/day or placebo for 12 weeks (Study 2).
| Parameter | Placebo (N = 117) |
OXYTROL 3.9 mg/day (N = 121) |
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| Mean (SD) | Median | Mean (SD) | Median | |
| Daily Incontinence Episodes | ||||
| Baseline | 5.0 (3.2) | 4 | 4.7 (2.9) | 4 |
| Reduction | 2.1 (3.0) | 2 | 2.9 (3.0) | 3 |
| p value vs. placebo | - | 0.0137* | ||
| Daily Urinary Frequency | ||||
| Baseline | 12.3 (3.3) | 12 | 12.4 (2.9) | 12 |
| Reduction | 1.4 (2.7) | 1 | 1.9 (2.7) | 2 |
| p value vs. placebo | - | 0.1010* | ||
| Urinary Void Volume (mL) | ||||
| Baseline | 175.0 (68.0) | 171.0 | 164.8 (62.3) | 160 |
| Increase | 9.3 (63.1) | 5.5 | 32.0 (55.2) | 24 |
| p value vs. placebo | - | 0.0010 | ||
| *Comparison significant if p < 0.05 | ||||
In a controlled clinical trial of skin sensitization, none of the 103 test subjects demonstrated skin hypersensitivity to OXYTROL.
Adhesion was periodically evaluated during the pivotal studies. Of the 4,746 OXYTROL evaluations in the trials, 20 (0.4%) were observed at clinic visits to have become completely detached and 35 (0.7%) became partially detached during routine clinic use. Similar to the pharmacokinetic studies, > 98% of the systems evaluated in the pivotal studies were assessed as being ≥ 75% attached and thus would be expected to perform as anticipated.
OXYTROL
(OKSEE TROLE)
(oxybutynin) Transdermal System
What is OXYTROL?
OXYTROL is a prescription medicine used to treat overactive bladder in men with symptoms of sudden need to urinate with leaking or wetting accidents (urge urinary incontinence), need to urinate right away (urgency), and a need to urinate often (frequency). OXYTROL is a transdermal system (patch) you apply to your skin.
It is not known if OXYTROL is safe and effective in children.
Do not use OXYTROL if:
Before using OXYTROL, tell your doctor about all of your medical conditions, including if you:
Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
Using OXYTROL with certain other medicines may affect each other. Using OXYTROL with other medicines can cause serious side effects.
Especially tell your doctor if you take:
Ask your doctor or pharmacist for a list of these medicines if you are not sure you take any of these medicines.
Know the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements. Keep a list of them and show it to your doctor and pharmacist when you get a new medicine.
How should I use OXYTROL?
What should I avoid while using OXYTROL?
What are the possible side effects of OXYTROL?
OXYTROL may cause serious side effects, including:
The most common side effects of OXYTROL include skin reactions where the patch is placed and dry mouth.
OXYTROL may cause you to sweat less and may increase your chances of being overheated, having a fever or heat stroke if you are in hot temperatures.
Tell your doctor if you have any side effect that bothers you or that does not go away or if you have constipation.
These are not all the side effects of OXYTROL. For a complete list, ask your doctor or pharmacist. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA1088.
How should I store OXYTROL?
Keep OXYTROL and all medicines out of the reach of children.
General information about the safe and effective use of OXYTROL.
Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use OXYTROL for a condition for which it was not prescribed. Do not give OXYTROL to other people, even if they have the same symptoms you have. It may harm them.
You can ask your pharmacist or doctor for information about OXYTROL that is written for health professionals.
What are the ingredients of OXYTROL?
Active Ingredient: oxybutynin
Inactive Ingredients: flexible polyester/ethylene-vinyl acetate film, acrylic adhesive, triacetin, siliconized polyester film.
Instructions for Use
OXYTROL
(OKSEE TROLE)
(oxybutynin transdermal system)
Read this Instructions for Use that comes with your OXYTROL before you start using it and each time you get a refill. There may be new information. This information does not take the place of talking to your doctor about your medical condition or treatment.
Where to apply OXYTROL:
 |
Figure A
How to apply OXYTROL:
Step 1.
 |
Figure B
 |
Figure C
Step 2.
 |
Figure D
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Figure E
Step 3.
 |
Figure F
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Figure G
How to remove OXYTROL:
This Patient Information and Instructions for Use has been approved by the U.S. Food and Drug Administration.
