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

Summary:

Drug interactions are reported among people who take Nicotinic acid (niacin and niacinamide (vitamin b3)) and Melatonin (melatonin). Common drug interactions include abdominal pain upper among females and somnolence among males.

The phase IV clinical study analyzes what interactions people have when they take Nicotinic acid and Melatonin. It is created by eHealthMe based on reports of 14 people who take the same drugs from the FDA, and is updated regularly.

What is Nicotinic acid?

Nicotinic acid has active ingredients of niacin and niacinamide (vitamin b3). It is often used in high blood cholesterol. eHealthMe is studying from 842 Nicotinic acid users. Check the latest studies of Nicotinic acid.

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.



On Jul, 26, 2026

14 people who take Nicotinic acid and Melatonin together, and have interactions are studied.

Nicotinic acid and Melatonin drug interactions.

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

female:

  1. Abdominal pain upper
  2. Asthenia (weakness)
  3. Bedridden
  4. Cushingoid (obesity and weakening of the muscles)
  5. Depression
  6. Dysphagia (a condition in which swallowing is difficult or painful)
  7. Dyspnoea (difficult or laboured respiration)
  8. Exostosis (formation of new bone on the surface of a bone)
  9. Fatigue (feeling of tiredness)
  10. Fibromyalgia (a long-term condition which causes pain all over the body)

male:

  1. Somnolence (a state of near-sleep, a strong desire for sleep)
  2. Abdominal discomfort
  3. Ascites (accumulation of fluid in the abdominal cavity)
  4. Cardiogenic shock (inadequate circulation of blood)
  5. Constipation
  6. General physical health deterioration (weak health status)
  7. Hyponatraemia (abnormally low level of sodium in the blood; associated with dehydration)
  8. Muscle spasms (muscle contraction)
  9. Nausea (feeling of having an urge to vomit)
  10. Sepsis (a severe blood infection that can lead to organ failure and death)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

  1. Abdominal pain upper
  2. Asthenia (weakness)
  3. Bedridden
  4. Cushingoid (obesity and weakening of the muscles)
  5. Depression
  6. Dysphagia (a condition in which swallowing is difficult or painful)
  7. Dyspnoea (difficult or laboured respiration)
  8. Exostosis (formation of new bone on the surface of a bone)
  9. Fatigue (feeling of tiredness)
  10. Fibromyalgia (a long-term condition which causes pain all over the body)

50-59:

  1. Abdominal discomfort
  2. Arthralgia (joint pain)
  3. Diarrhoea
  4. Fatigue (feeling of tiredness)
  5. Pain in extremity
  6. Peripheral swelling
  7. Somnolence (a state of near-sleep, a strong desire for sleep)
  8. Muscle spasms (muscle contraction)
  9. Abdominal pain upper
  10. Gastrointestinal disorder (functional problems of gastrointestinal tract)

60+:

  1. Abdominal distension
  2. Abdominal pain
  3. Stress
  4. Ventricular fibrillation (abnormally irregular heart rhythm)
  5. Vomiting
  6. Blood phosphorus increased
  7. Death
  8. Blood uric acid increased
  9. Dry mouth
  10. Myasthenia gravis (a chronic condition that causes muscles to tire and weaken easily)

What are the existing conditions these people have? *

  1. Acromegaly (body produces too much growth hormone, leading to excess growth of body tissues): 6 people, 42.86%
  2. Adrenal Insufficiency (a condition in which the adrenal glands do not produce adequate amounts of steroids): 4 people, 28.57%
  3. Thrombosis (formation of a blood clot inside a blood vessel): 3 people, 21.43%
  4. Anaemia (lack of blood): 3 people, 21.43%
  5. Bacterial Infection: 3 people, 21.43%
  6. Blood Phosphorus Increased: 3 people, 21.43%
  7. Blood Uric Acid Increased: 3 people, 21.43%
  8. Cardiogenic Shock (inadequate circulation of blood): 3 people, 21.43%
  9. Chronic Obstructive Pulmonary Disease (a progressive disease that makes it hard to breathe): 3 people, 21.43%
  10. Constipation: 3 people, 21.43%

* Approximation only. Some reports may have incomplete information.

Do you take Nicotinic acid and Melatonin?

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Related studies:

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

Browse all drug interactions of Nicotinic acid and 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

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 Nicotinic acid:

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 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 interactions between Nicotinic acid 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 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

How the study uses the data?

The study uses data from the FDA. It is based on niacin and niacinamide (vitamin b3) and melatonin (the active ingredients of Nicotinic acid and Melatonin, respectively), and Nicotinic acid and Melatonin (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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