Methocarbamol and Narcolepsy - a phase IV clinical study of FDA data

Summary:

Narcolepsy is reported as a side effect among people who take Methocarbamol (methocarbamol), especially for people who are male, 60+ old, also take Armodafinil, and have Drowsiness.

The phase IV clinical study analyzes which people have Narcolepsy when taking Methocarbamol. It is created by eHealthMe based on reports of 16,788 people who have side effects when taking Methocarbamol from the FDA, and is updated regularly.

What is Methocarbamol?

Methocarbamol has active ingredients of methocarbamol. It is often used in muscle spasms. eHealthMe is studying from 17,766 Methocarbamol users. Check the latest studies of Methocarbamol.

What is Narcolepsy?

Narcolepsy (brain's inability to regulate sleep-wake cycles normally) is found to be associated with 431 drugs and 737 conditions by eHealthMe. Check the latest studies of Narcolepsy.

On Jul, 07, 2026

16,788 people reported to have side effects when taking Methocarbamol.
Among them, 26 people (0.15%) have Narcolepsy.

Among these 26 people:

What is the gender of people who have Narcolepsy when taking Methocarbamol? *

female: 42.31 %
male: 57.69 %

What is the age of people who have Narcolepsy when taking Methocarbamol? *

What are other drugs people take besides Methocarbamol? *

What are other side effects people have besides Narcolepsy? *

Memory Loss: 12 people, 46.15%
Cognitive Disorder (mental health disorders affects learning, memory, perception, and problem solving): 11 people, 42.31%
Stress And Anxiety: 9 people, 34.62%
Tremor (trembling or shaking movements in one or more parts of your body): 7 people, 26.92%
Fatigue (feeling of tiredness): 6 people, 23.08%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 5 people, 19.23%
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 4 people, 15.38%
Osteoporosis (bones weak and more likely to break): 4 people, 15.38%
Gingival Bleeding (bleeding gums): 4 people, 15.38%
Haemorrhoids (a swollen vein or group of veins in the region of the anus): 4 people, 15.38%

What are the existing conditions these people have? *

Drowsiness: 13 people, 50.00%
Neuropathy Peripheral (surface nerve damage): 12 people, 46.15%
Insomnia (sleeplessness): 12 people, 46.15%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 5 people, 19.23%
Belching (release of gas from the digestive tract): 4 people, 15.38%
Type 2 Diabetes: 1 person, 3.85%
Restless Leg Syndrome (a powerful urge to move your legs): 1 person, 3.85%
Multiple Allergies (allergy to multiple agents): 1 person, 3.85%
Immunodeficiency Common Variable: 1 person, 3.85%
High Blood Pressure: 1 person, 3.85%

* Approximation only. Some reports may have incomplete information.

Do you take Methocarbamol and have Narcolepsy?

- Check whether Narcolepsy 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 Methocarbamol:

Methocarbamol (17,766 reports)

Narcolepsy treatments and more:

Narcolepsy (79,888 reports)

Browse all side effects of Methocarbamol:

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 Narcolepsy:

Narcolepsy (431 drugs)

Browse all the conditions that are associated with Narcolepsy:

Narcolepsy (737 conditions)

Related publications that referenced our studies

Han SH, Lee SA, "Superficial Vein Thrombosis as the Initial Manifestation of Protein S Deficiency in an Adolescent with Narcolepsy", Sleep Medicine Research, 2016 Jun .
Lopes E, Pereira D, da Silva Behrens NS, de Almeida Fonseca H, Calvancanti PO, de Araújo Lima TF, Pradella-Hallinan M, Castro J, Tufik S, Coelho FM, "Cataplexy as a side effect of modafinil in a patient without narcolepsy", Sleep Science, 2014 Mar .
Han SH, Lee SA, "Superficial Vein Thrombosis as the Initial Manifestation of Protein S Deficiency in an Adolescent with Narcolepsy", Sleep Medicine Research, 2016 Jun .
Lopes E, Pereira D, da Silva Behrens NS, de Almeida Fonseca H, Calvancanti PO, de Araújo Lima TF, Pradella-Hallinan M, Castro J, Tufik S, Coelho FM, "Cataplexy as a side effect of modafinil in a patient without narcolepsy", Sleep Science, 2014 Mar .

How the study uses the data?

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