Generic Ditropan

Common use

Oxybutynin is an antispasmodic, anticholinergic agent which used to treat symptoms of overactive bladder, such as incontinence, frequent or urgent urination, and increased night-time urination. Oxybutynin relaxes muscles in the bladder.



Dosage and direction

Take it orally, with or without food, or with a full glass of water/milk.

The recommended dose for adults is one 5 milligram tablet taken 2 to 3 times a day. You should not take more than 4 tablets a day.

The recommended dose for children over 5 years of age is one 5 milligram tablet taken twice a day. The most a child should take is 3 tablets a day.

Do not use oxybutynin in children under 5 years of age.

Note: this instruction presented here just for review. It's very necessary to consult with your doctor before using. It help you to get best results.



Precautions

Oxybutynin should be used with caution in the frail elderly and children who may be more sensitive to the effects of the product and in patients with autonomic neuropathy, hepatic or renal impairment and severe gastro-intestinal motility disorders. Do not drive or operate machinery or participat in any hazardous activity because Oxybutynin may cause drowsiness or blurred vision. Oxybutynin may make worse the symptoms of overactive heart disease or congestive heart failure, thyroid, high blood pressure, irregular or rapid heartbeat, or enlarged prostate. Oxybutynin can cause decreased sweating; in high environmental temperatures this can lead to heat prostration. Special concern should be taken in patients with hiatus hernia associated with reflux oesophagitis, as anticholinergic drugs can worsen this condition. Detropan should not be used during pregnancy, becoming pregnant or lactating without doctor's advice. Do not use Oxybutynin before breast-feeding without doctor's permission.



Contraindications

Oxybutynin is not allowed to people who are hypersensitivity to oxybutynin or any component.

Also contraindicated in people with urinary retention, gastric retention and other severe decreased gastrointestinal motility conditions, uncontrolled narrow-angle glaucoma and in patients who are at risk for these conditions.



Possible side effect

They may include all types of an allergic reaction. Also the most possible side effects include:

hot, dry skin and extreme thirst;

severe stomach pain or constipation;

pain or burning when you urinate;

urinating less than usual or not at all.

Less serious include:

dry mouth;

dry eyes, blurred vision;

mild constipation;

diarrhea;

nausea, mild stomach pain or upset;

dizziness, drowsiness, weakness;

headache;

sleep problems;

runny nose.

If you experience one of them stop using Oxybutynin and tell your doctor as soon as possible. Also consult with your doctor about any side effect that seems unusual.



Drug interaction

Oxybutynin interact with the following list of drugs: other bladder or urinary medications such as darifenacin, flavoxate, tolterodine, or solifenacin; glycopyrrolate; flecainide; mepenzolate; thioridazine; HIV /AIDS medicine such as nelfinavir or ritonavir; an antibiotic such as clarithromycin, erythromycin or troleandomycin; atropine , benztropine, dimenhydrinate, methscopolamine, or scopolamine; bronchodilators such as ipratroprium or tiotropium; an antifungal medication such as itraconazole or ketoconazole; irritable bowel medications such as dicyclomine, hyoscyamine , or propantheline; an antidepressant such as amitriptyline, fluoxetine, fluvoxamine, clomipramine, desipramine, doxepin, imipramine, nortriptyline, paroxetine, and others. Also note that interaction between two medications does not always mean that you must stop taking one of them. As usual it affects the the effect of drugs, so consult with your doctor about how it interactions are being managed or should be managed.



Missed dose

If you forgot to take your dose in time, please do it as soon as you remember. But do not take if it is too late or almost time for your next dose. Do not increase your recommended dose. Take your usually dose next day in the same regularly time.



Overdose

Symptoms of Oxybutynin overdose may include restlessness, fever, uneven heart rate, tingly feeling, vomiting, and urinating less than usual or not at all. If you experience one of them or unusual symptoms call your doctor immediately.



Storage

Store at room temperature between 20-25 C (68-77 F).



Disclaimer

We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.

Clinical Verification

Last Clinically Updated: August 15, 2026

Written By

Dr. Elena Vance, PharmD

Clinical Specialist in Neuropharmacology

Fact Checked By

Marcus Thorne, MS

Biomedical Data & FDA Label Verification

Medically Reviewed By

Dr. Arthur Campbell, MD

Board-Certified Psychiatrist (ABPN)