Krill and Drug effect decreased - a phase IV clinical study of FDA data

Summary:

Drug effect decreased is reported as a side effect among people who take Krill (krill oil), especially for people who are female, 60+ old, also take Calcium, and have Psoriatic arthropathy.

The phase IV clinical study analyzes which people have Drug effect decreased when taking Krill. It is created by eHealthMe based on reports of 5,093 people who have side effects when taking Krill from the FDA, and is updated regularly.

What is Krill?

Krill has active ingredients of krill oil. It is often used in high blood cholesterol. eHealthMe is studying from 5,404 Krill users. Check the latest studies of Krill.

What is Drug effect decreased?

Drug effect decreased is found to be associated with 1,455 drugs and 1,917 conditions by eHealthMe. Check the latest studies of Drug effect decreased.

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 Aug, 31, 2026

5,093 people reported to have side effects when taking Krill.
Among them, 21 people (0.41%) have Drug effect decreased.

Could Krill cause Drug effect decreased?

Among these 21 people:

What is the gender of people who have Drug effect decreased when taking Krill? *

female: 76.19 %
male: 23.81 %

What is the age of people who have Drug effect decreased when taking Krill? *

What are other drugs people take besides Krill? *

What are other side effects people have besides Drug effect decreased? *

Itching: 4 people, 19.05%
Fatigue (feeling of tiredness): 3 people, 14.29%
Headache (pain in head): 2 people, 9.52%
Injection Site Pain: 2 people, 9.52%
Dry Skin: 2 people, 9.52%
Drug Ineffective: 2 people, 9.52%
Weakness: 1 person, 4.76%
Diarrhea: 1 person, 4.76%
Heart Palpitations (feelings or sensations that your heart is pounding or racing): 1 person, 4.76%
Hair Texture Abnormal: 1 person, 4.76%

What are the existing conditions these people have? *

Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 3 people, 14.29%
Psoriatic Arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 3 people, 14.29%
Constipation: 2 people, 9.52%
Diabetes: 2 people, 9.52%
Pain: 2 people, 9.52%
High Blood Pressure: 1 person, 4.76%
Hair Loss: 1 person, 4.76%
Gait Disturbance: 1 person, 4.76%
Faeces Hard: 1 person, 4.76%
Erection Problems: 1 person, 4.76%

* Approximation only. Some reports may have incomplete information.

Do you take Krill and have Drug effect decreased?

- Check whether Drug effect decreased is associated with a drug or a condition
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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Krill:

Krill (5,404 reports)

Browse all side effects of Krill:

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 Drug effect decreased:

Drug effect decreased (1,455 drugs)

Browse all the conditions that are associated with Drug effect decreased:

Drug effect decreased (1,917 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on krill oil (the active ingredients of Krill) and Krill (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.