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Letrozole and Detrol drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Letrozole (letrozole) and Detrol (tolterodine tartrate). Common drug interactions include dizziness among females.

The phase IV clinical study analyzes what interactions people have when they take Letrozole and Detrol. It is created by eHealthMe based on reports of 31 people who take the same drugs from the FDA, and is updated regularly.

What is Letrozole?

Letrozole has active ingredients of letrozole. It is often used in breast cancer. eHealthMe is studying from 54,125 Letrozole users. Check the latest studies of Letrozole.

What is Detrol?

Detrol has active ingredients of tolterodine tartrate. It is often used in urge incontinence. eHealthMe is studying from 28,669 Detrol users. Check the latest studies of Detrol.

On Jul, 25, 2026

31 people who take Letrozole and Detrol together, and have interactions are studied.

Letrozole and Detrol drug interactions.

What are the common drug interactions of Letrozole and Detrol, by gender? *:

female:

  1. Dizziness
  2. Angina pectoris (chest pain due to ischemia of the heart muscle)
  3. Anaemia (lack of blood)
  4. Ataxia (loss of full control of bodily movements)
  5. Basal cell carcinoma (a skin cancer, it rarely metastasizes or kills)
  6. Bone disorder
  7. Cataract (clouding of the lens inside the eye)
  8. Cellulitis (infection under the skin)
  9. Cerebral artery stenosis (hardening of brain blood vessels)
  10. Cerebrosclerosis (hardening of the substance of the cerebrum)

male:

n/a

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

  1. Alopecia (absence of hair from areas of the body)
  2. Psychological trauma

50-59:

n/a

60+:

  1. Cough
  2. Dizziness
  3. Bone disorder
  4. Cataract (clouding of the lens inside the eye)
  5. Cellulitis (infection under the skin)
  6. Cerebral artery stenosis (hardening of brain blood vessels)
  7. Cerebrosclerosis (hardening of the substance of the cerebrum)
  8. Cerumen impaction
  9. Colonoscopy
  10. Death

What are the existing conditions these people have? *

  1. Stress And Anxiety: 11 people, 35.48%
  2. Pain: 11 people, 35.48%
  3. Metastases To Bone (cancer spreads to bone): 10 people, 32.26%
  4. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 10 people, 32.26%
  5. Gout (uric acid crystals building up in the body): 10 people, 32.26%
  6. Gastrointestinal Haemorrhage (bleeding gastrointestinal tract): 10 people, 32.26%
  7. Dizziness: 10 people, 32.26%
  8. Bone Pain: 10 people, 32.26%
  9. Bone Disorder: 10 people, 32.26%
  10. Anaemia (lack of blood): 10 people, 32.26%

* Approximation only. Some reports may have incomplete information.

Do you take Letrozole and Detrol?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

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

Browse all drug interactions of Letrozole and Detrol:

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 Letrozole:

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 Detrol:

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 Letrozole 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 Detrol 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 letrozole and tolterodine tartrate (the active ingredients of Letrozole and Detrol, respectively), and Letrozole and Detrol (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.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.

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