Asa and Anaemia macrocytic - a phase IV clinical study of FDA data

Summary:

Anaemia macrocytic is reported as a side effect among people who take Asa (aspirin), especially for people who are male, 60+ old, also take Calcium, and have Gastroesophageal reflux disease.

The phase IV clinical study analyzes which people have Anaemia macrocytic when taking Asa. It is created by eHealthMe based on reports of 32,003 people who have side effects when taking Asa from the FDA, and is updated regularly.

What is Asa?

Asa has active ingredients of aspirin. It is often used in blood clots. eHealthMe is studying from 32,557 Asa users. Check the latest studies of Asa.

What is Anaemia macrocytic?

Anaemia macrocytic (a macrocytic class of anaemia) is found to be associated with 364 drugs and 547 conditions by eHealthMe. Check the latest studies of Anaemia macrocytic.

On Aug, 11, 2026

32,003 people reported to have side effects when taking Asa.
Among them, 13 people (0.04%) have Anaemia macrocytic.

Among these 13 people:

What is the gender of people who have Anaemia macrocytic when taking Asa? *

female: 50 %
male: 50 %

What is the age of people who have Anaemia macrocytic when taking Asa? *

What are other drugs people take besides Asa? *

What are other side effects people have besides Anaemia macrocytic? *

Haemoglobin Decreased: 5 people, 38.46%
Thrombocytosis: 4 people, 30.77%
Mean Cell Volume Increased (more than normal average red blood cell volume): 4 people, 30.77%
Sepsis (a severe blood infection that can lead to organ failure and death): 4 people, 30.77%
Dehydration (dryness resulting from the removal of water): 3 people, 23.08%
Diverticulum (out pouching of a hollow (or a fluid-filled) structure in the body): 3 people, 23.08%
Dyspnea (difficult or laboured breathing): 3 people, 23.08%
Fall: 3 people, 23.08%
Back Pain: 3 people, 23.08%
Pleural Effusion (water on the lungs): 3 people, 23.08%

What are the existing conditions these people have? *

Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 4 people, 30.77%
Pain: 3 people, 23.08%
Multiple Myeloma (cancer of the plasma cells): 3 people, 23.08%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 2 people, 15.38%
Anaemia (lack of blood): 2 people, 15.38%
Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 2 people, 15.38%
Diabetes: 2 people, 15.38%
Dyslipidaemia (abnormal amount of lipids): 2 people, 15.38%
Acute Kidney Failure: 2 people, 15.38%
Limb Discomfort (discomfort in leg): 2 people, 15.38%

* Approximation only. Some reports may have incomplete information.

Do you take Asa and have Anaemia macrocytic?

- Check whether Anaemia macrocytic 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 Asa:

Asa (32,557 reports)

Browse all side effects of Asa:

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 Anaemia macrocytic:

Anaemia macrocytic (364 drugs)

Browse all the conditions that are associated with Anaemia macrocytic:

Anaemia macrocytic (547 conditions)

Related publications that referenced our studies

Alokaily FA, Alghamdi M, Almalki AS, Alhussaini H, "Aspirin induced leukocytoclastic vasculitis, lower gastrointestinal hemorrhage and acute renal failure (mimicking systemic vasculitis)", Saudi medical journal, 2013 Apr .
Alokaily FA, Alghamdi M, Almalki AS, Alhussaini H, "Aspirin induced leukocytoclastic vasculitis, lower gastrointestinal hemorrhage and acute renal failure (mimicking systemic vasculitis)", Saudi medical journal, 2013 Apr .

How the study uses the data?

The study uses data from the FDA. It is based on aspirin (the active ingredients of Asa) and Asa (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.