Myobloc and Fatigue aggravated - a phase IV clinical study of FDA data

Summary:

Fatigue aggravated is reported as a side effect among people who take Myobloc (botulinum toxin type b), especially for people who are female, 2-9 old, have been taking the drug for < 1 month also take Baclofen, and have Movement - uncontrolled or slow.

The phase IV clinical study analyzes which people have Fatigue aggravated when taking Myobloc. It is created by eHealthMe based on reports of 539 people who have side effects when taking Myobloc from the FDA, and is updated regularly.

What is Myobloc?

Myobloc has active ingredients of botulinum toxin type b. eHealthMe is studying from 543 Myobloc users. Check the latest studies of Myobloc.

What is Fatigue aggravated?

Fatigue aggravated (feeling of tiredness) is found to be associated with 3,120 drugs and 1,116 conditions by eHealthMe. Check the latest studies of Fatigue aggravated.

On Jul, 20, 2026

539 people reported to have side effects when taking Myobloc.
Among them, 24 people (4.45%) have Fatigue aggravated.

Among these 24 people:

How long have people been on Myobloc when they have Fatigue aggravated? *

What is the gender of people who have Fatigue aggravated when taking Myobloc? *

female: 79.17 %
male: 20.83 %

What is the age of people who have Fatigue aggravated when taking Myobloc? *

What are other drugs people take besides Myobloc? *

What are other side effects people have besides Fatigue aggravated? *

Dry Mouth: 13 people, 54.17%
Swallowing Difficulty: 8 people, 33.33%
Weakness: 7 people, 29.17%
Weight Decreased: 5 people, 20.83%
Nausea (feeling of having an urge to vomit): 5 people, 20.83%
Fever: 5 people, 20.83%
Dehydration (dryness resulting from the removal of water): 4 people, 16.67%
Loss Of Consciousness: 4 people, 16.67%
Vision Blurred: 3 people, 12.50%
Cough: 3 people, 12.50%

What are the existing conditions these people have? *

Movement - Uncontrolled Or Slow: 3 people, 12.50%
Torticollis (a twisted neck in which the head is tipped to one side, while the chin is turned to the other): 2 people, 8.33%
Muscle Spasticity (tight or stiff muscles and an inability to control those muscles): 2 people, 8.33%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 2 people, 8.33%
Primary Immunodeficiency Syndrome: 1 person, 4.17%
Pain: 1 person, 4.17%
Neck Pain: 1 person, 4.17%
Muscle Spasms (muscle contraction): 1 person, 4.17%
Mobility Decreased (ability to move is reduced): 1 person, 4.17%
Migraine (headache): 1 person, 4.17%

* Approximation only. Some reports may have incomplete information.

Do you take Myobloc and have Fatigue aggravated?

- Check whether Fatigue aggravated is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Myobloc:

Myobloc (543 reports)

Browse all side effects of Myobloc:

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 Fatigue aggravated:

Fatigue aggravated (3,120 drugs)

Browse all the conditions that are associated with Fatigue aggravated:

Fatigue aggravated (1,116 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on botulinum toxin type b (the active ingredients of Myobloc) and Myobloc (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.