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

Summary:

Drug interactions are reported among people who take Efudex (fluorouracil) and Seroquel (quetiapine fumarate). Common drug interactions include blood pressure increased among females and anxiety among males.

The phase IV clinical study analyzes what interactions people have when they take Efudex and Seroquel. It is created by eHealthMe based on reports of 11 people who take the same drugs from the FDA, and is updated regularly.

What is Efudex?

Efudex has active ingredients of fluorouracil. It is often used in actinic keratosis. eHealthMe is studying from 1,391 Efudex users. Check the latest studies of Efudex.

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.



On Jul, 19, 2026

11 people who take Efudex and Seroquel together, and have interactions are studied.

Efudex and Seroquel drug interactions.

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

female:

  1. Blood pressure increased
  2. Asthma
  3. Hypoglycaemia (deficiency of glucose in the bloodstream)
  4. Neuropathy peripheral (surface nerve damage)
  5. Pulmonary mass
  6. Surgery
  7. Vulvovaginal pain
  8. Adjustment disorder with depressed mood
  9. Asthenia (weakness)
  10. Cough

male:

  1. Anxiety
  2. Appetite disorder (abnormal eating habits)
  3. Pericarditis (inflammation of the pericardium)
  4. Pneumonia aspiration (bronchopneumonia that develops due to the entrance of foreign materials into the bronchial tree)
  5. Pulmonary mass
  6. Skin disorder (skin disease)
  7. White blood cell count decreased
  8. Cognitive disorder (mental health disorders affects learning, memory, perception, and problem solving)
  9. Communication disorder (speech and language disorder)
  10. Death

What are the common drug interactions of Efudex and Seroquel, 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. Disturbance in attention
  2. Dizziness
  3. Fatigue (feeling of tiredness)
  4. Headache (pain in head)
  5. Hypoaesthesia (reduced sense of touch or sensation)
  6. Malaise (a feeling of general discomfort or uneasiness)
  7. Oropharyngeal pain
  8. Pain in extremity
  9. Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect)
  10. Throat irritation

50-59:

  1. Anxiety
  2. Blood pressure increased
  3. Delusion (a false belief or opinion)

60+:

  1. Alopecia (absence of hair from areas of the body)
  2. Death
  3. Pericarditis (inflammation of the pericardium)
  4. Psychological trauma

What are the existing conditions these people have? *

  1. Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 5 people, 45.45%
  2. Relapsing-Remitting Multiple Sclerosis (reoccurrence of an inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 2 people, 18.18%
  3. Insomnia (sleeplessness): 2 people, 18.18%
  4. Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 2 people, 18.18%
  5. Generalized Anxiety Disorder (excessive, uncontrollable, unexplained and often irrational worry): 2 people, 18.18%
  6. Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 2 people, 18.18%
  7. Thrombocytopenia (decrease of platelets in blood): 1 person, 9.09%
  8. Stress And Anxiety: 1 person, 9.09%
  9. Pain: 1 person, 9.09%
  10. Nausea And Vomiting: 1 person, 9.09%

* Approximation only. Some reports may have incomplete information.

Do you take Efudex and Seroquel?

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Related studies:

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

Browse all drug interactions of Efudex and 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

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 Efudex:

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 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 interactions between Efudex 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 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

Related publications that referenced our studies


How the study uses the data?

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