Melatonin and Robaxisal drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Melatonin (melatonin) and Robaxisal (aspirin; methocarbamol). Common drug interactions include muscle spasms among females and drug dependence among males.

The phase IV clinical study analyzes what interactions people have when they take Melatonin and Robaxisal. It is created by eHealthMe based on reports of 97 people who take the same drugs from the FDA, and is updated regularly.

What is Melatonin?

Melatonin has active ingredients of melatonin. It is often used in insomnia. eHealthMe is studying from 56,212 Melatonin users. Check the latest studies of Melatonin.

What is Robaxisal?

Robaxisal has active ingredients of aspirin; methocarbamol. It is often used in back pain. eHealthMe is studying from 223 Robaxisal users. Check the latest studies of Robaxisal.



On Aug, 06, 2026

97 people who take Melatonin and Robaxisal together, and have interactions are studied.

Melatonin and Robaxisal drug interactions.

What are the common drug interactions of Melatonin and Robaxisal, by gender? *:

female:

  1. Muscle spasms (muscle contraction)
  2. Anxiety
  3. Attention deficit hyperactivity disorder (a chronic condition including attention difficulty, hyperactivity, and impulsiveness)
  4. Autism spectrum disorder (developmental disabilities that can cause significant social, communication and behavioural challenges)
  5. Blood pressure diastolic decreased
  6. Body temperature increased
  7. Decreased appetite
  8. Exostosis (formation of new bone on the surface of a bone)
  9. Headache (pain in head)
  10. Heart rate increased

male:

  1. Drug dependence
  2. Epidural lipomatosis (excessive accumulation of fat within the epidural space -brain)
  3. Juvenile idiopathic arthritis (a subset of arthritis seen in childhood)
  4. Obesity (having too much body fat)
  5. Respiratory depression (respiration has a rate below 12 breaths)
  6. Drug ineffective
  7. Drug abuse
  8. Victim of child abuse
  9. Child abuse
  10. Tenderness (pain or discomfort when an affected area is touched)

What are the common drug interactions of Melatonin and Robaxisal, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

  1. Drug dependence
  2. Epidural lipomatosis (excessive accumulation of fat within the epidural space -brain)
  3. Juvenile idiopathic arthritis (a subset of arthritis seen in childhood)
  4. Obesity (having too much body fat)
  5. Respiratory depression (respiration has a rate below 12 breaths)
  6. Drug ineffective
  7. Drug abuse
  8. Victim of child abuse
  9. Child abuse
  10. Tenderness (pain or discomfort when an affected area is touched)

20-29:

n/a

30-39:

  1. Body temperature increased
  2. Decreased appetite
  3. Exostosis (formation of new bone on the surface of a bone)
  4. Headache (pain in head)
  5. Heart rate increased
  6. Hypotension (abnormally low blood pressure)
  7. Influenza like illness
  8. Infusion related reaction
  9. Intervertebral disc degeneration (spinal disc degeneration)
  10. Jaw disorder (jaw disease)

40-49:

  1. Cerebellar ataxia (loss of coordination)

50-59:

  1. Autoimmune disorder (a condition in which the immune system attacks the body's normal substances and tissue)
  2. Erythema nodosum (skin inflammation that results in reddish, painful, tender lumps most commonly located in the front of the legs below)
  3. Lupus-like syndrome (a disease symptom matches with lupus an immune disease)
  4. Muscle spasms (muscle contraction)
  5. Myalgia (muscle pain)

60+:

n/a

What are the existing conditions these people have? *

  1. Pain: 90 people, 92.78%
  2. Itching: 90 people, 92.78%
  3. Constipation: 90 people, 92.78%
  4. Seizures (abnormal excessive or synchronous neuronal activity in the brain): 89 people, 91.75%
  5. Muscle Spasms (muscle contraction): 85 people, 87.63%
  6. Child Abuse: 84 people, 86.60%
  7. Sleep Disorder: 81 people, 83.51%
  8. Precocious Puberty: 10 people, 10.31%
  9. Muscle Tightness: 5 people, 5.15%
  10. Headache (pain in head): 5 people, 5.15%

* Approximation only. Some reports may have incomplete information.

Do you take Melatonin and Robaxisal?

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Related studies:

Effectiveness of, side effects of, and alternative drugs to the 2 drugs:

Browse all drug interactions of Melatonin and Robaxisal:

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

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Melatonin:

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 side effects of Robaxisal:

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 interactions between Melatonin and drugs from A to Z:

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 interactions between Robaxisal and drugs from A to Z:

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

How the study uses the data?

The study uses data from the FDA. It is based on melatonin and aspirin; methocarbamol (the active ingredients of Melatonin and Robaxisal, respectively), and Melatonin and Robaxisal (the brand names). 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.

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