Krill oil and Flexeril drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Krill oil (krill oil) and Flexeril (cyclobenzaprine hydrochloride). Common drug interactions include back injury among females and diarrhoea among males.

The phase IV clinical study analyzes what interactions people have when they take Krill oil and Flexeril. It is created by eHealthMe based on reports of 67 people who take the same drugs from the FDA, and is updated regularly.

What is Krill oil?

Krill oil has active ingredients of krill oil. It is often used in high blood cholesterol. eHealthMe is studying from 5,042 Krill oil users. Check the latest studies of Krill oil.

What is Flexeril?

Flexeril has active ingredients of cyclobenzaprine hydrochloride. It is often used in muscle spasms. eHealthMe is studying from 38,308 Flexeril users. Check the latest studies of Flexeril.



On Jul, 15, 2026

67 people who take Krill oil and Flexeril together, and have interactions are studied.

Krill oil and Flexeril drug interactions.

What are the common drug interactions of Krill Oil and Flexeril, by gender? *:

female:

  1. Back injury
  2. Balance disorder
  3. Blood sodium decreased
  4. Blood urine present
  5. Body height decreased
  6. Bone cyst
  7. Brain injury
  8. Cardiac arrest
  9. Carpal tunnel syndrome (nerve compression at wrist results numbness weakness, pain , swelling)
  10. Contusion (a type of hematoma of tissue in which capillaries)

male:

  1. Diarrhoea
  2. Pyrexia (fever)
  3. Fall
  4. Furuncle (infection of the hair follicle)
  5. Haemorrhage (bleeding)
  6. Hepatic encephalopathy (spectrum of neuropsychiatric abnormalities in patients with liver failure)
  7. Hypersomnia (excessive daytime sleepiness (eds))
  8. Hypokalaemia (low potassium)
  9. Increased tendency to bruise (increased tendency to injure the underlying soft tissue or bone)
  10. Leukocytosis (increased white blood cells)

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Bedridden
  2. Memory impairment

30-39:

n/a

40-49:

  1. Nausea (feeling of having an urge to vomit)
  2. Diarrhoea
  3. Abdominal pain
  4. Cerebral atrophy (decrement in size of brain)
  5. Chills (felling of cold)
  6. Electrocardiogram qt prolonged
  7. Hepatic encephalopathy (spectrum of neuropsychiatric abnormalities in patients with liver failure)
  8. Hypersomnia (excessive daytime sleepiness (eds))
  9. Hypokalaemia (low potassium)
  10. Leukocytosis (increased white blood cells)

50-59:

  1. Fall
  2. Nausea (feeling of having an urge to vomit)
  3. Headache (pain in head)
  4. Neutropenia (an abnormally low number of neutrophils)
  5. Anxiety
  6. Asthma
  7. Blood sodium decreased
  8. Blood urine present
  9. Bone cyst
  10. Dehydration (dryness resulting from the removal of water)

60+:

  1. Chronic kidney disease
  2. Uveitis (inflammation of the uvea)
  3. Cognitive disorder (mental health disorders affects learning, memory, perception, and problem solving)
  4. Crying
  5. Death
  6. Depression
  7. Disease progression
  8. Drooling (drop saliva uncontrollably from the mouth)
  9. Dysphemia (stammering or stuttering)
  10. Embolic stroke (stroke due to obstruction due to an embolus)

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 19 people, 28.36%
  2. Pain: 10 people, 14.93%
  3. Fibromyalgia (a long-term condition which causes pain all over the body): 9 people, 13.43%
  4. Multiple Myeloma (cancer of the plasma cells): 8 people, 11.94%
  5. Thyroid Diseases: 6 people, 8.96%
  6. High Blood Pressure: 6 people, 8.96%
  7. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 6 people, 8.96%
  8. Hypersensitivity: 5 people, 7.46%
  9. Cataplexy (loss of muscle tone accompanied by full conscious awareness): 5 people, 7.46%
  10. Stress And Anxiety: 4 people, 5.97%

* Approximation only. Some reports may have incomplete information.

Do you take Krill oil and Flexeril?

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Related studies:

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

Browse all drug interactions of Krill oil and Flexeril:

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 Krill oil:

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 Flexeril:

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 Krill oil 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 Flexeril 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 krill oil and cyclobenzaprine hydrochloride (the active ingredients of Krill oil and Flexeril, respectively), and Krill oil and Flexeril (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.

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.



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