Acephen and Intestinal obstruction - a phase IV clinical study of FDA data

Summary:

Intestinal obstruction is reported as a side effect among people who take Acephen (acetaminophen), especially for people who are female, 40-49 old, also take Dilaudid, and have Breast cancer.

The phase IV clinical study analyzes which people have Intestinal obstruction when taking Acephen. It is created by eHealthMe based on reports of 85 people who have side effects when taking Acephen from the FDA, and is updated regularly.

What is Acephen?

Acephen has active ingredients of acetaminophen. eHealthMe is studying from 91 Acephen users. Check the latest studies of Acephen.

What is Intestinal obstruction?

Intestinal obstruction is found to be associated with 1,886 drugs and 2,619 conditions by eHealthMe. Check the latest studies of Intestinal obstruction.

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, 10, 2026

85 people reported to have side effects when taking Acephen.
Among them, 12 people (14.12%) have Intestinal obstruction.

Could Acephen cause Intestinal obstruction?

Among these 12 people:

What is the gender of people who have Intestinal obstruction when taking Acephen? *

female: 100 %
male: 0.0 %

What is the age of people who have Intestinal obstruction when taking Acephen? *

What are other drugs people take besides Acephen? *

What are other side effects people have besides Intestinal obstruction? *

Anhedonia (inability to experience pleasure from activities usually found enjoyable): 12 people, 100.00%
Disability: 12 people, 100.00%
Dental Plaque (film of mucus and bacteria deposited on the teeth that encourages the development of dental caries): 12 people, 100.00%
Fall: 12 people, 100.00%
Device Related Infection: 12 people, 100.00%
Bladder Neoplasm (bladder tumour): 12 people, 100.00%
Diplopia (double vision): 12 people, 100.00%
Metastases To Bone (cancer spreads to bone): 12 people, 100.00%
Bone Disorder: 12 people, 100.00%
Chest Pain: 12 people, 100.00%

What are the existing conditions these people have? *

Muscle Spasms (muscle contraction): 12 people, 100.00%
Metastases To Bone (cancer spreads to bone): 12 people, 100.00%
Constipation: 12 people, 100.00%
Breast Cancer Metastatic: 12 people, 100.00%
Breast Cancer: 12 people, 100.00%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 1 person, 8.33%

* Approximation only. Some reports may have incomplete information.

Do you take Acephen and have Intestinal obstruction?

- Check whether Intestinal obstruction 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 Acephen:

Acephen (91 reports)

Browse all side effects of Acephen:

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 Intestinal obstruction:

Intestinal obstruction (1,886 drugs)

Browse all the conditions that are associated with Intestinal obstruction:

Intestinal obstruction (2,619 conditions)

How the study uses the data?

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