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Seroquel and Echinacea drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Seroquel (quetiapine fumarate) and Echinacea (echinacea). Common drug interactions include malaise among females and constipation among males.

The phase IV clinical study analyzes what interactions people have when they take Seroquel and Echinacea. It is created by eHealthMe based on reports of 23 people who take the same drugs from the FDA, and is updated regularly.

What is Seroquel?

Seroquel has active ingredients of quetiapine fumarate. It is often used in bipolar disorder. eHealthMe is studying from 120,285 Seroquel users. Check the latest studies of Seroquel.

What is Echinacea?

Echinacea has active ingredients of echinacea. It is often used in immune response. eHealthMe is studying from 1,930 Echinacea users. Check the latest studies of Echinacea.

On Jul, 15, 2026

23 people who take Seroquel and Echinacea together, and have interactions are studied.

Seroquel and Echinacea drug interactions.

What are the common drug interactions of Seroquel and Echinacea, by gender? *:

female:

  1. Malaise (a feeling of general discomfort or uneasiness)
  2. Diarrhoea
  3. Pain
  4. Constipation
  5. Swelling
  6. Weight decreased
  7. Weight increased
  8. Antipsychotic drug level increased
  9. Anxiety
  10. Blood pressure diastolic decreased

male:

  1. Constipation
  2. Dizziness
  3. Tremor (trembling or shaking movements in one or more parts of your body)
  4. Weight increased
  5. Fatigue (feeling of tiredness)
  6. Drug ineffective
  7. Urinary tract infection
  8. Dry mouth
  9. Erection increased
  10. Increased appetite

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

  1. Anxiety
  2. Borderline personality disorder
  3. Gait disturbance
  4. Joint stiffness
  5. Muscle spasms (muscle contraction)
  6. Pain
  7. Swelling

40-49:

  1. Limb injury
  2. Malaise (a feeling of general discomfort or uneasiness)
  3. Respiratory tract infection viral
  4. Sinusitis (inflammation of sinus)

50-59:

  1. Weight increased
  2. Constipation
  3. Erection increased
  4. Increased appetite
  5. Muscular weakness (muscle weakness)
  6. Pain
  7. Suicidal ideation
  8. Tinnitus (a ringing in the ears)
  9. Weight decreased
  10. Antipsychotic drug level increased

60+:

n/a

What are the existing conditions these people have? *

  1. Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 5 people, 21.74%
  2. Stress And Anxiety: 3 people, 13.04%
  3. Multiple Myeloma (cancer of the plasma cells): 3 people, 13.04%
  4. Osteoarthritis (a joint disease caused by cartilage loss in a joint): 2 people, 8.70%
  5. Depression: 2 people, 8.70%

* Approximation only. Some reports may have incomplete information.

Do you take Seroquel and Echinacea?

- Personalize this study to your gender, age, symptoms and drugs
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

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

Browse all drug interactions of Seroquel and Echinacea:

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 Seroquel:

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 Echinacea:

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 Seroquel 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 Echinacea 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

Related publications that referenced our studies

How the study uses the data?

The study uses data from the FDA. It is based on quetiapine fumarate and echinacea (the active ingredients of Seroquel and Echinacea, respectively), and Seroquel and Echinacea (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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