Viagra and Hypotonia - a phase IV clinical study of FDA data

Summary:

Hypotonia is reported as a side effect among people who take Viagra (sildenafil citrate), especially for people who are male, 60+ old, have been taking the drug for < 1 month also take Effexor, and have Pain.

The phase IV clinical study analyzes which people have Hypotonia when taking Viagra. It is created by eHealthMe based on reports of 61,803 people who have side effects when taking Viagra from the FDA, and is updated regularly.

What is Viagra?

Viagra has active ingredients of sildenafil citrate. It is often used in erection problems. eHealthMe is studying from 63,865 Viagra users. Check the latest studies of Viagra.

What is Hypotonia?

Hypotonia (low muscle tone) is found to be associated with 827 drugs and 1,770 conditions by eHealthMe. Check the latest studies of Hypotonia.

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, 03, 2026

61,803 people reported to have side effects when taking Viagra.
Among them, 17 people (0.03%) have Hypotonia.

Among these 17 people:

How long have people been on Viagra when they have Hypotonia? *

What is the gender of people who have Hypotonia when taking Viagra? *

female: 0.0 %
male: 100 %

What is the age of people who have Hypotonia when taking Viagra? *

What are other drugs people take besides Viagra? *

What are other side effects people have besides Hypotonia? *

Nausea (feeling of having an urge to vomit): 5 people, 29.41%
Dyspnea (difficult or laboured breathing): 4 people, 23.53%
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): 4 people, 23.53%
Withdrawal Syndrome (a discontinuation syndrome is a set of symptoms occurred due to discontinuation of substance): 3 people, 17.65%
Joint Lock: 3 people, 17.65%
Hypoaesthesia (reduced sense of touch or sensation): 3 people, 17.65%
Weight Decreased: 3 people, 17.65%
Hemiparesis (weakness on one side of the body): 3 people, 17.65%
Heart Palpitations (feelings or sensations that your heart is pounding or racing): 3 people, 17.65%
Headache (pain in head): 3 people, 17.65%

What are the existing conditions these people have? *

Stress And Anxiety: 3 people, 17.65%
Pain: 3 people, 17.65%
Insomnia (sleeplessness): 1 person, 5.88%
Indigestion: 1 person, 5.88%
High Blood Pressure: 1 person, 5.88%
High Blood Cholesterol: 1 person, 5.88%
Fibromyalgia (a long-term condition which causes pain all over the body): 1 person, 5.88%
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, 5.88%

* Approximation only. Some reports may have incomplete information.

Do you take Viagra and have Hypotonia?

- Check whether Hypotonia 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 Viagra:

Viagra (63,865 reports)

Hypotonia treatments and more:

Hypotonia (14,614 reports)

Browse all side effects of Viagra:

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 Hypotonia:

Hypotonia (827 drugs)

Browse all the conditions that are associated with Hypotonia:

Hypotonia (1,770 conditions)

Related publications that referenced our studies

Jeong SY, Jeon SJ, Kim YR, Choi SS, Kwak HS, "A Rare Case of Viagra Induced Toxic Encephalopathy", Investigative Magnetic Resonance Imaging, 2016 Sep .
Jeong SY, Jeon SJ, Kim YR, Choi SS, Kwak HS, "A Rare Case of Viagra Induced Toxic Encephalopathy", Investigative Magnetic Resonance Imaging, 2016 Sep .

How the study uses the data?

The study uses data from the FDA. It is based on sildenafil citrate (the active ingredients of Viagra) and Viagra (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.