Oxybutynin is used to treat overactive bladder (a condition in which the bladder muscles contract uncontrollably and cause frequent urination, urgent need to urinate, and inability to control urination) control urgent, frequent, or uncontrolled urination in people who have overactive bladder (a condition in which the bladder muscles have uncontrollable spasms), Oxybutynin is also used to control bladder muscles in adults and children older than 6 years of age with spina bifida (a disability that occurs when the spinal cord does not close properly before birth), or other nervous system conditions that affect the bladder muscles. Oxybutynin is in a class of medications called anticholinergics/antimuscarinics. It works by relaxing the bladder muscles.

Oxybutynin comes as a tablet, syrup, and an extended-release (long-acting) tablet to take by mouth. The tablets and syrup are usually taken two to four times a day. The extended-release tablet is usually taken once a day with or without food. Take oxybutynin exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor. Swallow the extended-release tablets whole with plenty of water or other liquid. Do not split, chew, or crush the extended-release tablets. Tell your doctor if you cannot swallow tablets.

It is very important that your doctor check the progress of you or your child at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you or your child should continue to use it.

This medicine may cause a serious type of allergic reaction called angioedema. Angioedema may be life-threatening and requires immediate medical attention. Call your doctor right away if you or your child has a rash, itching, a large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs, trouble breathing, or chest tightness while you are using this medicine.

Oxybutynin may cause anxiety, confusion, irritability, sleepiness or unusual drowsiness, or hallucinations (seeing, hearing, or feeling things that are not there). These symptoms are more likely to occur when you begin taking this medicine, or when the dose is increased. If you or your child has these symptoms, tell your doctor right away.

Contact your doctor help if you have any of these signs of an allergic reaction to Ditropan XL

Stop using Ditropan XL and call your doctor at once if you have:

- Feeling very thirsty or hot, being unable to urinate, heavy sweating, or hot and dry skin;

- Severe stomach pain or constipation;

- Blurred vision, tunnel vision, eye pain, or seeing halos around lights;

- Hallucinations (seeing or hearing things that are not real) or confusion;

- Severe tiredness or drowsiness;

- Pain or burning when you urinate; or

Little or no urinating.

Common Ditropan XL side effects may include:

- Dry mouth;

- Dry eyes, blurred vision;

- Mild constipation;

- Headache or dizziness; or

- Drowsiness.

How quickly does Ditropan XL work?

You may notice some improvement in your symptoms within the first two weeks of treatment. However, it may take six to eight weeks to experience the full benefit of oxybutynin. Talk to your doctor if your symptoms do not improve at all within eight weeks.

Can I just stop taking Ditropan XL (oxybutynin)?

Oxybutynin may control your symptoms but will not cure your condition. Continue to take oxybutynin even if you feel well. Do not stop taking oxybutynin without talking to your doctor.

Does oxybutynin make you tired?

Oxybutynin may cause anxiety, confusion, irritability, sleepiness or unusual drowsiness, or hallucinations (seeing, hearing, or feeling things that are not there). ... This medicine may cause some people to become dizzy, drowsy, or have blurred vision.