L-cysteine side effects, by duration, gender and age (a phase IV clinical study of FDA data)
Summary:
Side effects are reported by people who take L-cysteine (n - acetyl cysteine). Common side effects include pneumocystis jiroveci pneumonia among females and arthropathy among males.
The phase IV clinical study is created by eHealthMe based on 305 reports from the FDA, and is updated regularly.
What is L-Cysteine?
L-cysteine has active ingredients of n - acetyl cysteine. eHealthMe is studying from 335 L-cysteine users. Check the latest studies of L-cysteine.
305 people who take L-Cysteine and have side effects are studied.

What are the common side effects of L-cysteine, by gender? *
What are the common side effects of L-cysteine, by age (0-1 to 60+)? *
What are the common side effects of L-cysteine, by the time people have been on the drug (< 1 month to 10+ years)? *
* Approximation only. Some reports may have incomplete information.
Do you take L-cysteine?
- Personalize this study to your gender and age- Predict drug outcomes for up to one year with AI
- Get an AI agent to monitor your drugs continuously
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.
How the study uses the data?
The study is based on n - acetyl cysteine (the active ingredients of L-cysteine) and L-cysteine (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered.
Related studies are listed below in case you need more information:
Alternative drugs to, pros and cons of L-cysteine:
- L-cysteine (335 reports)
All L-cysteine side effects 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 zWho 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.
Recent studies on eHealthMe:
- Drug interactions of Tretinoin and Miacalcin - 8 seconds ago
- Could Lotensin cause Exposed Bone In Jaw? - 22 seconds ago
- Could Risperidone cause Drug Toxicity? - 49 seconds ago
- Could Benadryl cause Blood Testosterone Decreased? - a minute ago
- Could Zocor cause Dizziness (Excl Vertigo)? - a minute ago
- Drug interactions of Deltasone and Atrovent - a minute ago
- Drug interactions of Ranexa and Coreg - a minute ago
- Could Cortril cause Hypoglycemia? - a minute ago
- Drug interactions of Gabapentin and Lomotil - a minute ago
- Drug interactions of Colcrys and Nexium 24Hr - a minute ago