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

Summary:

Drug interactions are reported among people who take Tapazole (methimazole) and Seroquel (quetiapine fumarate). Common drug interactions include pneumonia among females and hypomania among males.

The phase IV clinical study analyzes what interactions people have when they take Tapazole and Seroquel. It is created by eHealthMe based on reports of 47 people who take the same drugs from the FDA, and is updated regularly.

What is Tapazole?

Tapazole has active ingredients of methimazole. It is often used in hyperthyroidism. eHealthMe is studying from 2,477 Tapazole users. Check the latest studies of Tapazole.

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 Aug, 09, 2026

47 people who take Tapazole and Seroquel together, and have interactions are studied.

Tapazole and Seroquel drug interactions.

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

female:

  1. Pneumonia
  2. Rash
  3. Renal failure (kidney dysfunction)
  4. Renal hypertension (high blood pressure caused by the kidneys hormonal response)
  5. Renal injury (kidney injury)
  6. Somnolence (a state of near-sleep, a strong desire for sleep)
  7. Upper respiratory tract infection
  8. Vertigo
  9. Abdominal pain upper
  10. Anxiety

male:

  1. Hypomania (a mild form of mania, marked by elation and hyperactivity)
  2. Platelet count decreased
  3. Malaise (a feeling of general discomfort or uneasiness)
  4. Weight increased
  5. Lichenoid keratosis (a skin disorder described by rapid growing, reddish to brown, benign (noncancerous) lesion on the skin)
  6. Neurasthaenia (a psychological disorder characterized by chronic fatigue and weakness, loss of memory, and generalized aches and pains)
  7. Photosensitivity reaction
  8. Skin exfoliation (removal of the oldest dead skin cells)
  9. Sleep disorder
  10. Weakness

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

  1. Cholecystitis acute (rapid infection of gallbladder)
  2. Nephrolithiasis (calculi in the kidneys)
  3. Suicidal ideation
  4. Gallbladder disorder
  5. Gallbladder enlargement
  6. Weight increased

30-39:

  1. Anxiety
  2. Cardiac disorder
  3. Coronary artery occlusion (complete obstruction of blood flow in a coronary artery)
  4. Drug ineffective
  5. Fatigue (feeling of tiredness)
  6. Intentional self-injury
  7. Menstruation irregular
  8. Myocardial infarction (destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle)
  9. Pain
  10. Suicide attempt

40-49:

  1. Diabetes mellitus inadequate control
  2. Glucose tolerance impaired (blood glucose is raised beyond normal levels, but not high enough to warrant a diabetes diagnosis)
  3. Hyperglycaemia (high blood sugar)
  4. Tardive dyskinesia (a disorder that involves involuntary movements)
  5. Type 1 diabetes mellitus
  6. Type 2 diabetes mellitus
  7. Adverse drug reaction
  8. Agitation (state of anxiety or nervous excitement)
  9. Drug effect decreased
  10. Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)

50-59:

  1. Abdominal pain upper
  2. Constipation
  3. Diarrhoea
  4. Vomiting
  5. C-reactive protein increased
  6. Pancreatitis (inflammation of pancreas)
  7. Lichenoid keratosis (a skin disorder described by rapid growing, reddish to brown, benign (noncancerous) lesion on the skin)
  8. Skin exfoliation (removal of the oldest dead skin cells)
  9. Anxiety
  10. Blood cholesterol increased

60+:

  1. Disorientation (disability in which the senses of time, direction, and recognition of people and places)
  2. Sopor (sleep)
  3. Fall
  4. Fatigue (feeling of tiredness)
  5. Upper respiratory tract infection
  6. Subgaleal haematoma (bleeding in the potential space between the skull periosteum and the scalp galea aponeurosis)
  7. Blood alkaline phosphatase increased
  8. Gamma-glutamyltransferase increased
  9. Hepatotoxicity (chemical-driven liver damage)
  10. Hyperbilirubinaemia (excess of bilirubin in the blood)

What are the existing conditions these people have? *

  1. Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 18 people, 38.30%
  2. Sleep Disorder: 9 people, 19.15%
  3. Stress And Anxiety: 5 people, 10.64%
  4. Depression: 5 people, 10.64%
  5. Parkinson's Disease: 3 people, 6.38%
  6. Pain: 3 people, 6.38%
  7. Nausea And Vomiting: 3 people, 6.38%
  8. Nausea (feeling of having an urge to vomit): 3 people, 6.38%
  9. High Blood Pressure: 3 people, 6.38%
  10. Headache (pain in head): 3 people, 6.38%

* Approximation only. Some reports may have incomplete information.

Do you take Tapazole 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 Tapazole 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 Tapazole:

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 Tapazole 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 methimazole and quetiapine fumarate (the active ingredients of Tapazole and Seroquel, respectively), and Tapazole 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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