Pamelor and Ditropan drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Pamelor (nortriptyline hydrochloride) and Ditropan (oxybutynin chloride). Common drug interactions include diabetes mellitus inadequate control among females and dizziness among males.

The phase IV clinical study analyzes what interactions people have when they take Pamelor and Ditropan. It is created by eHealthMe based on reports of 54 people who take the same drugs from the FDA, and is updated regularly.

What is Pamelor?

Pamelor has active ingredients of nortriptyline hydrochloride. It is often used in migraine. eHealthMe is studying from 4,069 Pamelor users. Check the latest studies of Pamelor.

What is Ditropan?

Ditropan has active ingredients of oxybutynin chloride. It is often used in urge incontinence. eHealthMe is studying from 11,799 Ditropan users. Check the latest studies of Ditropan.



On Jul, 10, 2026

54 people who take Pamelor and Ditropan together, and have interactions are studied.

Pamelor and Ditropan drug interactions.

What are the common drug interactions of Pamelor and Ditropan, by gender? *:

female:

  1. Diabetes mellitus inadequate control
  2. Dna antibody positive
  3. Dry skin
  4. Ear disorder
  5. Ear infection
  6. Enterobacter test positive
  7. Enterococcus test positive
  8. Exercise tolerance decreased
  9. Frustration (a form of poorly expressed anger)
  10. Gastrointestinal viral infection (virus infection of gastrointestinal tract)

male:

  1. Dizziness
  2. Gallbladder operation
  3. Benign mesothelioma (non-cancerous tumour)
  4. Central nervous system lesion (an abnormality in tissue of brain or spinal cord)
  5. Cerebrovascular accident (sudden death of some brain cells due to lack of oxygen when the blood flow to the brain is impaired by blockage or rupture)
  6. Cholecystitis (infection of gallbladder)
  7. Cholelithiasis (the presence or formation of gallstones in the gallbladder or bile ducts)
  8. Chronic kidney disease
  9. Colonic polyp (extra part of colon tissue grow in intestine)
  10. Constipation

What are the common drug interactions of Pamelor and Ditropan, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Central nervous system lesion (an abnormality in tissue of brain or spinal cord)
  2. Urinary tract infection

30-39:

  1. Chronic kidney disease
  2. Renal failure (kidney dysfunction)

40-49:

  1. Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
  2. Drug hypersensitivity
  3. Fatigue (feeling of tiredness)
  4. Urinary tract infection
  5. Adverse drug reaction
  6. Anaemia (lack of blood)
  7. Application site reaction
  8. Body temperature increased
  9. Burning sensation
  10. Cellulitis staphylococcal (a type of bacteria originated skin soft tissue infection)

50-59:

  1. Implant site scar
  2. Initial insomnia (feeling of inadequate or poor-quality sleep)
  3. Injection site abscess
  4. Injury
  5. Loss of control of legs
  6. Multiple sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath)
  7. Muscle spasms (muscle contraction)
  8. Muscle spasticity (tight or stiff muscles and an inability to control those muscles)
  9. Muscle tightness
  10. Myalgia (muscle pain)

60+:

  1. Dizziness
  2. Drug ineffective
  3. Neurogenic bladder (the normal function of the bladder is to store and empty urine in a coordinated, controlled fashion)
  4. Renal impairment (severely reduced kidney function)
  5. Sudden death
  6. Throat irritation
  7. Weakness
  8. Breast cancer female
  9. Burning sensation
  10. Cardiac disorder

What are the existing conditions these people have? *

  1. Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 15 people, 27.78%
  2. Gastrointestinal Disorder (functional problems of gastrointestinal tract): 6 people, 11.11%
  3. Headache (pain in head): 6 people, 11.11%
  4. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 6 people, 11.11%
  5. Fatigue (feeling of tiredness): 5 people, 9.26%
  6. High Blood Pressure: 5 people, 9.26%
  7. Diabetes: 5 people, 9.26%
  8. Diabetic Neuropathy (neuropathic disorders that are associated with diabetes mellitus): 4 people, 7.41%
  9. Dementia (madness): 4 people, 7.41%
  10. Constipation: 4 people, 7.41%

* Approximation only. Some reports may have incomplete information.

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Pamelor and Ditropan:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Pamelor:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all side effects of Ditropan:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Pamelor and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Browse all interactions between Ditropan and drugs from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

How the study uses the data?

The study uses data from the FDA. It is based on nortriptyline hydrochloride and oxybutynin chloride (the active ingredients of Pamelor and Ditropan, respectively), and Pamelor and Ditropan (the brand names). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered. Dosage of drugs is not considered in the study.

How to use the study?

DO NOT STOP MEDICATIONS without first consulting your doctor. If there are any serious or long term adverse effects discovered in the study, discuss the study with your doctor to ensure that proper medication management will be in place if applicable.

Who is eHealthMe?

With medical big data and proven AI/ML algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 800+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

WARNING, DISCLAIMER, USE FOR PUBLICATION

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on eHealthMe.com is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only. Our phase IV clinical studies alone cannot establish cause-effect relationship. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

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