Xopenex and Muscle twitching - a phase IV clinical study of FDA data

Summary:

Muscle twitching is reported as a side effect among people who take Xopenex (levalbuterol hydrochloride), especially for people who are female, 60+ old, also take Singulair, and have Narcolepsy.

The phase IV clinical study analyzes which people have Muscle twitching when taking Xopenex. It is created by eHealthMe based on reports of 13,420 people who have side effects when taking Xopenex from the FDA, and is updated regularly.

What is Xopenex?

Xopenex has active ingredients of levalbuterol hydrochloride. It is often used in asthma. eHealthMe is studying from 13,816 Xopenex users. Check the latest studies of Xopenex.

What is Muscle twitching?

Muscle twitching is found to be associated with 1,235 drugs and 1,905 conditions by eHealthMe. Check the latest studies of Muscle twitching.

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 Sep, 01, 2026

13,420 people reported to have side effects when taking Xopenex.
Among them, 25 people (0.19%) have Muscle twitching.

Among these 25 people:

What is the gender of people who have Muscle twitching when taking Xopenex? *

female: 73.91 %
male: 26.09 %

What is the age of people who have Muscle twitching when taking Xopenex? *

What are other drugs people take besides Xopenex? *

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

Nausea (feeling of having an urge to vomit): 8 people, 32.00%
Headache (pain in head): 6 people, 24.00%
Chest Pain: 6 people, 24.00%
Fatigue (feeling of tiredness): 6 people, 24.00%
Panic Disorder: 6 people, 24.00%
Dyspnea (difficult or laboured breathing): 5 people, 20.00%
Tremor (trembling or shaking movements in one or more parts of your body): 5 people, 20.00%
Thinking Abnormal: 5 people, 20.00%
Feeling Abnormal: 5 people, 20.00%
Muscle Spasms (muscle contraction): 5 people, 20.00%

What are the existing conditions these people have? *

Cataplexy (loss of muscle tone accompanied by full conscious awareness): 5 people, 20.00%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 5 people, 20.00%
Stress And Anxiety: 4 people, 16.00%
Panic Disorder: 3 people, 12.00%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 3 people, 12.00%
Bipolar Disorder (mood disorder): 3 people, 12.00%
Pain: 2 people, 8.00%
Osteoporosis (bones weak and more likely to break): 2 people, 8.00%
Failure To Thrive (inadequate weight gain and physical growth in children): 2 people, 8.00%
Mitochondrial Myopathy (the muscle fibres do not function due to damage of mitochondria): 2 people, 8.00%

* Approximation only. Some reports may have incomplete information.

Do you take Xopenex and have Muscle twitching?

- Check whether Muscle twitching 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 Xopenex:

Xopenex (13,816 reports)

Muscle twitching treatments and more:

Muscle twitching (29,030 reports)

Browse all side effects of Xopenex:

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 twitching:

Muscle twitching (1,235 drugs)

Browse all the conditions that are associated with Muscle twitching:

Muscle twitching (1,905 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on levalbuterol hydrochloride (the active ingredients of Xopenex) and Xopenex (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.