Nac and Abdominal pain upper - a phase IV clinical study of FDA data

Summary:

Abdominal pain upper is reported as a side effect among people who take Nac (n - acetyl cysteine), especially for people who are female, 60+ old, also take Coenzyme Q10, and have Immunodeficiency common variable.

The phase IV clinical study analyzes which people have Abdominal pain upper when taking Nac. It is created by eHealthMe based on reports of 626 people who have side effects when taking Nac from the FDA, and is updated regularly.

What is Nac?

Nac has active ingredients of n - acetyl cysteine. eHealthMe is studying from 857 Nac users. Check the latest studies of Nac.

What is Abdominal pain upper?

Abdominal pain upper is found to be associated with 2,959 drugs and 4,497 conditions by eHealthMe. Check the latest studies of Abdominal pain upper.

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, 30, 2026

626 people reported to have side effects when taking Nac.
Among them, 21 people (3.35%) have Abdominal pain upper.

Among these 21 people:

What is the gender of people who have Abdominal pain upper when taking Nac? *

female: 85 %
male: 15 %

What is the age of people who have Abdominal pain upper when taking Nac? *

What are other drugs people take besides Nac? *

What are other side effects people have besides Abdominal pain upper? *

Nausea (feeling of having an urge to vomit): 12 people, 57.14%
Fatigue (feeling of tiredness): 11 people, 52.38%
Diarrhea: 7 people, 33.33%
Feeling Abnormal: 6 people, 28.57%
Muscle Aches (muscle pain): 6 people, 28.57%
Insomnia (sleeplessness): 6 people, 28.57%
Infusion Related Reaction: 5 people, 23.81%
Poor Venous Access: 5 people, 23.81%
Nasopharyngitis (inflammation of the nasopharynx): 5 people, 23.81%
Drowsiness: 5 people, 23.81%

What are the existing conditions these people have? *

Immunodeficiency Common Variable: 5 people, 23.81%
Idiopathic Pulmonary Fibrosis (chronic lung disease): 3 people, 14.29%
Primary Pulmonary Hypertension (primary high blood pressure that affects the arteries in the lungs and the right side of your heart): 2 people, 9.52%
Crohn's Disease (a condition that causes inflammation of the gastrointestinal tract): 2 people, 9.52%
Weight Loss: 1 person, 4.76%
Urinary Tract Infection: 1 person, 4.76%
Psoriasis (immune-mediated disease that affects the skin): 1 person, 4.76%
Osteoporosis (bones weak and more likely to break): 1 person, 4.76%
Indigestion: 1 person, 4.76%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 4.76%

* Approximation only. Some reports may have incomplete information.

Do you take Nac and have Abdominal pain upper?

- Check whether Abdominal pain upper 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 Nac:

Nac (857 reports)

Browse all side effects of Nac:

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 Abdominal pain upper:

Abdominal pain upper (2,959 drugs)

Browse all the conditions that are associated with Abdominal pain upper:

Abdominal pain upper (4,497 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on n - acetyl cysteine (the active ingredients of Nac) and Nac (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.