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Ditropan XL (oxybutynin) Disease Interactions

There are 3 disease interactions with Ditropan XL (oxybutynin):


Anticholinergics (Includes Ditropan XL) ↔ autonomic neuropathy

Severe Potential Hazard, Moderate plausibility. Applies to: Autonomic Neuropathy

Agents with anticholinergic activity can exacerbate many of the manifestations of autonomic neuropathy, including tachycardia, anhidrosis, bladder atony, obstipation, dry mouth and eyes, cycloplegia and blurring of vision, and sexual impotence in males. Therapy with antimuscarinic agents and higher dosages of antispasmodic agents (e.g., dicyclomine or oxybutynin) should be administered cautiously in patients with autonomic neuropathy.


  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.

Antiperistaltic agents (Includes Ditropan XL) ↔ infectious diarrhea

Severe Potential Hazard, Low plausibility. Applies to: Infectious Diarrhea/Enterocolitis/Gastroenteritis

The use of drugs with antiperistaltic activity (primarily antidiarrheal and antimuscarinic agents, but also antispasmodic agents such as dicyclomine or oxybutynin at high dosages) is contraindicated in patients with diarrhea due to pseudomembranous enterocolitis or enterotoxin-producing bacteria. These drugs may prolong and/or worsen diarrhea associated with organisms that invade the intestinal mucosa, such as toxigenic E. coli, Salmonella and Shigella, and pseudomembranous colitis due to broad-spectrum antibiotics. Other symptoms and complications such as fever, shedding of organisms and extraintestinal illness may also be increased or prolonged. In general, because antiperistaltic agents decrease gastrointestinal motility, they may delay the excretion of infective gastroenteric organisms or toxins and should be used cautiously in patients with any infectious diarrhea, particularly if accompanied by high fever or pus or blood in the stool. Some cough and cold and other combination products may occasionally include antimuscarinic agents for their drying effects and may, therefore, require careful selection when necessary.


  1. "Product Information. Atropine Sulfate Injection, USP (atropine)." ESI Lederle Generics, Philadelphia, PA.
  2. "Product Information. Imodium (loperamide)." Janssen Pharmaceutica, Titusville, NJ.
  3. Walley T, Milson D "Loperamide related toxic megacolon in Clostridium difficile colitis." Postgrad Med J 66 (1990): 582
  4. Brown JW "Toxic megacolon associated with loperamide therapy." JAMA 241 (1979): 501-2
  5. Marshall WF Jr, Rosenthal P, Merritt RJ "Atropine therapy and paralytic ileus in an infant." J Pediatr Gastroenterol Nutr 9 (1989): 532-4
  6. "Lomotil for diarrhea in children." Med Lett Drugs Ther 17 (1975): 104
View all 6 references

Oxybutynin (Includes Ditropan XL) ↔ central nervous system

Moderate Potential Hazard, Moderate plausibility. Applies to: Dementia, CNS Disorder

Oxybutynin is associated with anticholinergic central nervous system (CNS) effects. If a patient experiences anticholinergic CNS effects, dose reduction or drug discontinuation should be considered. Oxybutynin should be used with caution in patients with Parkinson's disease and in patients with preexisting dementia treated with cholinesterase inhibitors due to the risk of aggravation of symptoms.

Ditropan XL (oxybutynin) drug interactions

There are 660 drug interactions with Ditropan XL (oxybutynin)

Ditropan XL (oxybutynin) alcohol/food interactions

There is 1 alcohol/food interaction with Ditropan XL (oxybutynin)

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No information available.

Do not stop taking any medications without consulting your healthcare provider.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.