Activella and Stroke - a phase IV clinical study of FDA data

Summary:

Stroke is reported as a side effect among people who take Activella (estradiol; norethindrone acetate), especially for people who are female, 60+ old, have been taking the drug for 2 - 5 years also take Prempro, and have High blood pressure.

The phase IV clinical study analyzes which people have Stroke when taking Activella. It is created by eHealthMe based on reports of 1,837 people who have side effects when taking Activella from the FDA, and is updated regularly.

What is Activella?

Activella has active ingredients of estradiol; norethindrone acetate. It is often used in menopause. eHealthMe is studying from 1,971 Activella users. Check the latest studies of Activella.

What is Stroke?

Stroke (sudden death of a portion of the brain cells due to a lack of oxygen) is found to be associated with 2,365 drugs and 3,018 conditions by eHealthMe. Check the latest studies of Stroke.

On Jan, 20, 2026

1,837 people reported to have side effects when taking Activella.
Among them, 15 people (0.82%) have Stroke.

Among these 15 people:

How long have people been on Activella when they have Stroke? *

What is the gender of people who have Stroke when taking Activella? *

female: 100 %
male: 0.0 %

What is the age of people who have Stroke when taking Activella? *

What are other drugs people take besides Activella? *

What are other side effects people have besides Stroke? *

Thrombosis (formation of a blood clot inside a blood vessel): 4 people, 26.67%
Breast Cancer: 3 people, 20.00%
Malaise (a feeling of general discomfort or uneasiness): 2 people, 13.33%
High Blood Cholesterol: 2 people, 13.33%
Weight Increased: 1 person, 6.67%
Deep Venous Thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 1 person, 6.67%
Heart Attack: 1 person, 6.67%
Gallbladder Disorder: 1 person, 6.67%
Fever: 1 person, 6.67%
Fatigue (feeling of tiredness): 1 person, 6.67%

What are the existing conditions these people have? *

Stress And Anxiety: 3 people, 20.00%
High Blood Pressure: 3 people, 20.00%
Vulvovaginal Dryness: 2 people, 13.33%
Vulvovaginal Burning Sensation: 2 people, 13.33%
Sleep Disorder: 2 people, 13.33%
Menopausal Symptoms: 2 people, 13.33%
Headache (pain in head): 2 people, 13.33%
Fibromyalgia (a long-term condition which causes pain all over the body): 2 people, 13.33%
Vaginal Bleeding: 1 person, 6.67%
Serum Serotonin Decreased: 1 person, 6.67%

* Approximation only. Some reports may have incomplete information.

Do you take Activella and have Stroke?

- Check whether Stroke 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 Activella:

Activella (1,971 reports)

Stroke treatments and more:

Stroke (334,633 reports)

How severe was Stroke and when was it recovered:

Stroke in Activella

Expand to all the drugs that have ingredients of estradiol; norethindrone acetate:

Stroke and drugs with ingredients of estradiol; norethindrone acetate (29 reports)

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 Activella:

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 Stroke:

Stroke (2,365 drugs)

Browse all the conditions that are associated with Stroke:

Stroke (3,018 conditions)

Drugs similar to Activella and Stroke :

How the study uses the data?

The study uses data from the FDA. It is based on estradiol; norethindrone acetate (the active ingredients of Activella) and Activella (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.