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

Summary:

Drug interactions are reported among people who take Letrozole (letrozole) and Tenormin (atenolol). Common drug interactions include anaemia among females.

The phase IV clinical study analyzes what interactions people have when they take Letrozole and Tenormin. It is created by eHealthMe based on reports of 36 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 Tenormin?

Tenormin has active ingredients of atenolol. It is often used in high blood pressure. eHealthMe is studying from 20,474 Tenormin users. Check the latest studies of Tenormin.

On Jul, 16, 2026

36 people who take Letrozole and Tenormin together, and have interactions are studied.

Letrozole and Tenormin drug interactions.

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

female:

  1. Anaemia (lack of blood)
  2. White blood cell count decreased
  3. Bladder cancer
  4. Blood creatinine increased
  5. Depression
  6. Fall
  7. Femur fracture
  8. Haematocrit decreased
  9. Haematuria (presence of blood in urine)
  10. Heart rate decreased

male:

n/a

What are the common drug interactions of Letrozole and Tenormin, 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:

n/a

50-59:

  1. Intestinal perforation (complete penetration of the wall of the intestine)
  2. Lip blister
  3. Platelet count decreased

60+:

  1. Anaemia (lack of blood)
  2. Pancreatitis (inflammation of pancreas)
  3. Depression
  4. Fall
  5. Femur fracture
  6. Haematocrit decreased
  7. Haematuria (presence of blood in urine)
  8. Heart rate decreased
  9. Hot flush (sudden feelings of heat)
  10. Hypoacusis (loss of hearing)

What are the existing conditions these people have? *

  1. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 7 people, 19.44%
  2. Breast Cancer Female: 7 people, 19.44%
  3. High Blood Cholesterol: 5 people, 13.89%
  4. Hyperlipidaemia (presence of excess lipids in the blood): 4 people, 11.11%
  5. Breast Cancer Metastatic: 4 people, 11.11%
  6. Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 4 people, 11.11%
  7. Dizziness: 3 people, 8.33%
  8. Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 3 people, 8.33%
  9. Metastases To Bone (cancer spreads to bone): 3 people, 8.33%
  10. Nausea (feeling of having an urge to vomit): 3 people, 8.33%

* Approximation only. Some reports may have incomplete information.

Do you take Letrozole and Tenormin?

- 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 Tenormin:

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 Tenormin:

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 Tenormin 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 atenolol (the active ingredients of Letrozole and Tenormin, respectively), and Letrozole and Tenormin (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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