Letrozole and Mean cell haemoglobin concentration increased - a phase IV clinical study of FDA data

Summary:

Mean cell haemoglobin concentration increased is reported as a side effect among people who take Letrozole (letrozole), especially for people who are female, 60+ old, have been taking the drug for 2 - 5 years also take Palbociclib, and have Stress and anxiety.

The phase IV clinical study analyzes which people have Mean cell haemoglobin concentration increased when taking Letrozole. It is created by eHealthMe based on reports of 53,470 people who have side effects when taking Letrozole 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 Mean cell haemoglobin concentration increased?

Mean cell haemoglobin concentration increased (more concentration of haemoglobin in a given volume of packed red blood cells) is found to be associated with 132 drugs and 241 conditions by eHealthMe. Check the latest studies of Mean cell haemoglobin concentration increased.

On Jul, 10, 2026

53,470 people reported to have side effects when taking Letrozole.
Among them, 25 people (0.05%) have Mean cell haemoglobin concentration increased.

Could Letrozole cause Mean cell haemoglobin concentration increased?

Among these 25 people:

How long have people been on Letrozole when they have Mean cell haemoglobin concentration increased? *

What is the gender of people who have Mean cell haemoglobin concentration increased when taking Letrozole? *

female: 100 %
male: 0.0 %

What is the age of people who have Mean cell haemoglobin concentration increased when taking Letrozole? *

What are other drugs people take besides Letrozole? *

Palbociclib: 10 people, 40.00%
Femara: 6 people, 24.00%
Ibrance: 6 people, 24.00%
Zometa: 4 people, 16.00%
Tasigna: 4 people, 16.00%
Albuterol Sulfate And Ipratropium Bromide: 4 people, 16.00%
Cipro: 4 people, 16.00%
Hygroton: 4 people, 16.00%
Levaquin: 4 people, 16.00%
Lexapro: 4 people, 16.00%

What are other side effects people have besides Mean cell haemoglobin concentration increased? *

Red Blood Cell Count Decreased: 21 people, 84.00%
Mean Cell Haemoglobin Increased (more than normal haemoglobin per red blood cell in a sample of blood): 20 people, 80.00%
Haemoglobin Decreased: 20 people, 80.00%
Haematocrit Decreased: 19 people, 76.00%
Red Cell Distribution Width Increased: 14 people, 56.00%
Mean Cell Volume Increased (more than normal average red blood cell volume): 13 people, 52.00%
Fever: 12 people, 48.00%
Lymphocyte Count Increased: 11 people, 44.00%
Weakness: 11 people, 44.00%
White Blood Cell Count Decreased: 10 people, 40.00%

What are the existing conditions these people have? *

Stress And Anxiety: 5 people, 20.00%
Pain: 4 people, 16.00%
High Blood Pressure: 4 people, 16.00%
Chronic Myeloid Leukaemia (long lasting type of cancer that starts in the blood-forming cells of the bone marrow and invades the blood): 4 people, 16.00%
Arrhythmias (irregular heartbeat): 4 people, 16.00%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 2 people, 8.00%
Inappropriate Antidiuretic Hormone Secretion: 1 person, 4.00%
Hyponatremia (abnormally low level of sodium in the blood; associated with dehydration): 1 person, 4.00%
High Blood Cholesterol: 1 person, 4.00%
Cough: 1 person, 4.00%

* Approximation only. Some reports may have incomplete information.

Do you take Letrozole and have Mean cell haemoglobin concentration increased?

- Check whether Mean cell haemoglobin concentration increased is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

Effectiveness of, long term effects of, and alternative drugs to Letrozole:

Letrozole (54,125 reports)

Mean cell haemoglobin concentration increased treatments and more:

Mean cell haemoglobin concentration increased (775 reports)

How severe was Mean cell haemoglobin concentration increased and when was it recovered:

Mean cell haemoglobin concentration increased in Letrozole

Expand to all the drugs that have ingredients of letrozole:

Mean cell haemoglobin concentration increased and drugs with ingredients of letrozole

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 the drugs that are associated with Mean cell haemoglobin concentration increased:

Mean cell haemoglobin concentration increased (132 drugs)

Browse all the conditions that are associated with Mean cell haemoglobin concentration increased:

Mean cell haemoglobin concentration increased (241 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on letrozole (the active ingredients of Letrozole) and Letrozole (the brand name). 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.