Sprintec and Lack of strength - a phase IV clinical study of FDA data

Summary:

Lack of strength is reported as a side effect among people who take Sprintec (ethinyl estradiol; norgestimate), especially for people who are female, 30-39 old, have been taking the drug for < 1 month also take Vitamin D3, and have Multiple sclerosis.

The phase IV clinical study analyzes which people have Lack of strength when taking Sprintec. It is created by eHealthMe based on reports of 3,556 people who have side effects when taking Sprintec from the FDA, and is updated regularly.

What is Sprintec?

Sprintec has active ingredients of ethinyl estradiol; norgestimate. It is often used in birth control. eHealthMe is studying from 4,397 Sprintec users. Check the latest studies of Sprintec.

What is Lack of strength?

Lack of strength is found to be associated with 4,746 drugs and 6,714 conditions by eHealthMe. Check the latest studies of Lack of strength.

On Jan, 17, 2026

3,556 people reported to have side effects when taking Sprintec.
Among them, 76 people (2.14%) have Lack of strength.

Among these 76 people:

* Approximation only. Some reports may have incomplete information.

Do you take Sprintec and have Lack of strength?

- Check whether Lack of strength 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 Sprintec:

Sprintec (4,397 reports)

Lack of strength treatments and more:

Lack of strength (586,869 reports)

How severe was Lack of strength and when was it recovered:

Lack of strength in Sprintec

Expand to all the drugs that have ingredients of ethinyl estradiol; norgestimate:

Lack of strength and drugs with ingredients of ethinyl estradiol; norgestimate (351 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 Sprintec:

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 Lack of strength:

Lack of strength (4,746 drugs)

Browse all the conditions that are associated with Lack of strength:

Lack of strength (6,714 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on ethinyl estradiol; norgestimate (the active ingredients of Sprintec) and Sprintec (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.