Finasteride and Muscle rigidity - a phase IV clinical study of FDA data

Summary:

Muscle rigidity is reported as a side effect among people who take Finasteride (finasteride), especially for people who are male, 60+ old, have been taking the drug for 2 - 5 years also take Omeprazole, and have Parkinson's disease.

The phase IV clinical study analyzes which people have Muscle rigidity when taking Finasteride. It is created by eHealthMe based on reports of 42,469 people who have side effects when taking Finasteride from the FDA, and is updated regularly.

What is Finasteride?

Finasteride has active ingredients of finasteride. It is often used in prostate examination abnormal. eHealthMe is studying from 44,177 Finasteride users. Check the latest studies of Finasteride.

What is Muscle rigidity?

Muscle rigidity (muscle stiffness) is found to be associated with 780 drugs and 1,035 conditions by eHealthMe. Check the latest studies of Muscle rigidity.

On Aug, 11, 2026

42,469 people reported to have side effects when taking Finasteride.
Among them, 31 people (0.07%) have Muscle rigidity.

Could Finasteride cause Muscle rigidity?

Among these 31 people:

How long have people been on Finasteride when they have Muscle rigidity? *

What is the gender of people who have Muscle rigidity when taking Finasteride? *

female: 0.0 %
male: 100 %

What is the age of people who have Muscle rigidity when taking Finasteride? *

What are other drugs people take besides Finasteride? *

Omeprazole: 11 people, 35.48%
Tamsulosin: 8 people, 25.81%
Acetaminophen: 7 people, 22.58%
Citalopram Hydrobromide: 6 people, 19.35%
Midodrine Hydrochloride: 6 people, 19.35%
Piperacillin And Tazobactam: 6 people, 19.35%
Stalevo 100: 6 people, 19.35%
Duopa: 5 people, 16.13%
Alendronic Acid: 4 people, 12.90%
Moviprep: 4 people, 12.90%

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

Hypertonia (abnormal increase in muscle tension and a reduced ability of a muscle to stretch): 10 people, 32.26%
Neuroleptic Malignant Syndrome (a life-threatening neurological disorder most often caused by an adverse reaction to neuroleptic or antipsychotic agents): 8 people, 25.81%
Hyperpyrexia (extremely high fever): 8 people, 25.81%
Hyperhidrosis (abnormally increased sweating): 8 people, 25.81%
Fall: 7 people, 22.58%
Blood Creatine Phosphokinase Increased: 6 people, 19.35%
Serotonin Syndrome (occurs when two drugs that affect the body's level of serotonin are taken together at the same time): 6 people, 19.35%
Mobility Decreased (ability to move is reduced): 5 people, 16.13%
Tremor (trembling or shaking movements in one or more parts of your body): 5 people, 16.13%
Drug Withdrawal Syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation): 4 people, 12.90%

What are the existing conditions these people have? *

Parkinson's Disease: 21 people, 67.74%
Affective Disorder (mental disorder): 2 people, 6.45%
High Blood Pressure: 2 people, 6.45%
Androgenetic Alopecia (common form of hair loss): 2 people, 6.45%
Depression: 2 people, 6.45%
Prostate Cancer: 2 people, 6.45%
Pain: 2 people, 6.45%
Atrial Fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 1 person, 3.23%
Bladder Disorder: 1 person, 3.23%
Dyskinesia (abnormality or impairment of voluntary movement): 1 person, 3.23%

* Approximation only. Some reports may have incomplete information.

Do you take Finasteride and have Muscle rigidity?

- Check whether Muscle rigidity 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 Finasteride:

Finasteride (44,177 reports)

Muscle rigidity treatments and more:

Muscle rigidity (16,888 reports)

Browse all side effects of Finasteride:

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 rigidity:

Muscle rigidity (780 drugs)

Browse all the conditions that are associated with Muscle rigidity:

Muscle rigidity (1,035 conditions)

Related publications that referenced our studies

Fouda AM, Bazeed AM, "Hematuria and Hematospermia Associated with the Use of Finasteride for the Treatment of Androgenic Alopecia: A Case Report", Drug Safety-Case Reports, 2017 Dec .
Fouda AM, Bazeed AM, "Hematuria and Hematospermia Associated with the Use of Finasteride for the Treatment of Androgenic Alopecia: A Case Report", Drug Safety-Case Reports, 2017 Dec .

How the study uses the data?

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