Heparin and Muscle tightness - a phase IV clinical study of FDA data

Summary:

Muscle tightness is reported as a side effect among people who take Heparin (heparin sodium), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Lasix, and have Trismus.

The phase IV clinical study analyzes which people have Muscle tightness when taking Heparin. It is created by eHealthMe based on reports of 91,860 people who have side effects when taking Heparin from the FDA, and is updated regularly.

What is Heparin?

Heparin has active ingredients of heparin sodium. It is often used in blood clots. eHealthMe is studying from 92,141 Heparin users. Check the latest studies of Heparin.

What is Muscle tightness?

Muscle tightness is found to be associated with 1,071 drugs and 1,025 conditions by eHealthMe. Check the latest studies of Muscle tightness.

eHealthMe: drug outcomes in the real world

eHealthMe runs one of the largest post-marketing drug safety studies in the world. We study millions of patients and 5,000 more each day. Our data-driven phase IV clinical trials have been referenced on 800+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Tools to study our phase IV findings are available to the public, anonymous and free >>>.

On Aug, 28, 2026

91,860 people reported to have side effects when taking Heparin.
Among them, 73 people (0.08%) have Muscle tightness.

Among these 73 people:

How long have people been on Heparin when they have Muscle tightness? *

What is the gender of people who have Muscle tightness when taking Heparin? *

female: 57.53 %
male: 42.47 %

What is the age of people who have Muscle tightness when taking Heparin? *

What are other drugs people take besides Heparin? *

What are other side effects people have besides Muscle tightness? *

Nausea (feeling of having an urge to vomit): 42 people, 57.53%
Pain: 38 people, 52.05%
Dyspnea (difficult or laboured breathing): 36 people, 49.32%
Chest Pain: 34 people, 46.58%
Headache (pain in head): 34 people, 46.58%
Stress And Anxiety: 27 people, 36.99%
Sinusitis (inflammation of sinus): 24 people, 32.88%
Oxygen Saturation Decreased: 22 people, 30.14%
Gallstones (stone formation by bile component): 21 people, 28.77%
Infection: 21 people, 28.77%

What are the existing conditions these people have? *

Multiple Myeloma (cancer of the plasma cells): 17 people, 23.29%
Trismus (reduced opening of the jaws): 17 people, 23.29%
Immunodeficiency Common Variable: 10 people, 13.70%
Osteoarthritis (a joint disease caused by cartilage loss in a joint): 4 people, 5.48%
Hyperparathyroidism Secondary (an abnormally high concentration of parathyroid hormone in the blood, resulting in weakening of the bones through loss of calcium-secondary): 4 people, 5.48%
Musculoskeletal Discomfort (discomfort in the body's muscles, joints, tendons, ligaments and nerves): 4 people, 5.48%
Iridocyclitis (inflammation of the iris and ciliary body of the eye): 4 people, 5.48%
Pemphigoid (tense blisters on the skin): 4 people, 5.48%
Ovarian Cancer (cancer of ovary): 3 people, 4.11%
Asthma: 3 people, 4.11%

* Approximation only. Some reports may have incomplete information.

Do you take Heparin and have Muscle tightness?

- Check whether Muscle tightness 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 Heparin:

Heparin (92,141 reports)

Muscle tightness treatments and more:

Muscle tightness (19,728 reports)

Browse all side effects of Heparin:

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 Muscle tightness:

Muscle tightness (1,071 drugs)

Browse all the conditions that are associated with Muscle tightness:

Muscle tightness (1,025 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on heparin sodium (the active ingredients of Heparin) and Heparin (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.