Tylenol and Transverse sinus thrombosis - a phase IV clinical study of FDA data

Summary:

Transverse sinus thrombosis is reported as a side effect among people who take Tylenol (acetaminophen), especially for people who are female, 20-29 old, also take Yaz, and have Birth control.

The phase IV clinical study analyzes which people have Transverse sinus thrombosis when taking Tylenol. It is created by eHealthMe based on reports of 217,809 people who have side effects when taking Tylenol from the FDA, and is updated regularly.

What is Tylenol?

Tylenol has active ingredients of acetaminophen. It is often used in pain. eHealthMe is studying from 222,310 Tylenol users. Check the latest studies of Tylenol.

What is Transverse sinus thrombosis?

Transverse sinus thrombosis (a blood clot in transverse sinus) is found to be associated with 119 drugs and 268 conditions by eHealthMe. Check the latest studies of Transverse sinus thrombosis.

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, 21, 2026

217,809 people reported to have side effects when taking Tylenol.
Among them, 40 people (0.02%) have Transverse sinus thrombosis.

Could Tylenol cause Transverse sinus thrombosis?

Among these 40 people:

What is the gender of people who have Transverse sinus thrombosis when taking Tylenol? *

female: 82.05 %
male: 17.95 %

What is the age of people who have Transverse sinus thrombosis when taking Tylenol? *

What are other drugs people take besides Tylenol? *

What are other side effects people have besides Transverse sinus thrombosis? *

Cerebral Haemorrhage (bleeding within the brain): 11 people, 27.50%
Cerebral Infarction (less blood supply to brain resulting tissue damage): 9 people, 22.50%
Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body): 9 people, 22.50%
Jugular Vein Thrombosis (clot in jugular vein): 9 people, 22.50%
Superior Sagittal Sinus Thrombosis (blood clot in the dural venous sinuses, which drain blood from the brain): 9 people, 22.50%
Intracranial Venous Sinus Thrombosis (presence of thrombosis (a blood clot) in the dural venous sinuses, which drain blood from the brain): 7 people, 17.50%
Emotional Distress: 6 people, 15.00%
Respiratory Distress (difficulty in breathing): 6 people, 15.00%
Stress And Anxiety: 5 people, 12.50%
Nausea And Vomiting: 5 people, 12.50%

What are the existing conditions these people have? *

Birth Control: 19 people, 47.50%
Acne (skin problems that cause pimples): 4 people, 10.00%
Premenstrual Syndrome: 4 people, 10.00%
Nausea (feeling of having an urge to vomit): 4 people, 10.00%
Asthma: 3 people, 7.50%
Nausea And Vomiting: 2 people, 5.00%
Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 2 people, 5.00%
Migraine (headache): 2 people, 5.00%
Osteoporosis (bones weak and more likely to break): 2 people, 5.00%
Nongerminomatous Germ Cell Tumor Of The Cns: 1 person, 2.50%

* Approximation only. Some reports may have incomplete information.

Do you take Tylenol and have Transverse sinus thrombosis?

- Check whether Transverse sinus thrombosis is associated with a drug or a condition
- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously

Related studies:

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

Tylenol (222,310 reports)

Browse all side effects of Tylenol:

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 Transverse sinus thrombosis:

Transverse sinus thrombosis (119 drugs)

Browse all the conditions that are associated with Transverse sinus thrombosis:

Transverse sinus thrombosis (268 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on acetaminophen (the active ingredients of Tylenol) and Tylenol (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.