Tryptophan and Rashes - a phase IV clinical study of FDA data

Summary:

Rashes is reported as a side effect among people who take Tryptophan (l - tryptophan), especially for people who are female, 50-59 old, have been taking the drug for 6 - 12 months also take Tamsulosin, and have Depression.

The phase IV clinical study analyzes which people have Rashes when taking Tryptophan. It is created by eHealthMe based on reports of 636 people who have side effects when taking Tryptophan from the FDA, and is updated regularly.

What is Tryptophan?

Tryptophan has active ingredients of l - tryptophan. eHealthMe is studying from 700 Tryptophan users. Check the latest studies of Tryptophan.

What is Rashes?

Rashes (redness) is found to be associated with 3,713 drugs and 6,213 conditions by eHealthMe. Check the latest studies of Rashes.

On Jul, 22, 2026

636 people reported to have side effects when taking Tryptophan.
Among them, 15 people (2.36%) have Rashes.

Among these 15 people:

How long have people been on Tryptophan when they have Rashes? *

What is the gender of people who have Rashes when taking Tryptophan? *

female: 58.33 %
male: 41.67 %

What is the age of people who have Rashes when taking Tryptophan? *

What are other drugs people take besides Tryptophan? *

What are other side effects people have besides Rashes? *

Stress And Anxiety: 9 people, 60.00%
Intestinal Obstruction: 7 people, 46.67%
Herpes Zoster: 7 people, 46.67%
Pain: 6 people, 40.00%
Weakness: 6 people, 40.00%
Urinary Tract Infection: 6 people, 40.00%
Dyspnea (difficult or laboured breathing): 5 people, 33.33%
High Blood Pressure: 5 people, 33.33%
Abdominal Pain Upper: 4 people, 26.67%
Kidney Stones: 4 people, 26.67%

What are the existing conditions these people have? *

Depression: 10 people, 66.67%
Ulcerative Colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 7 people, 46.67%
Pneumonia: 3 people, 20.00%
Mental Disorder (a psychological term for a mental or behavioural pattern or anomaly that causes distress or disability): 3 people, 20.00%
Medullary Thyroid Cancer (type of thyroid cancer that develops in the parafollicular cells of the thyroid gland): 3 people, 20.00%
Sciatica (a set of symptoms including pain caused by general compression or irritation of one of five spinal nerve roots of each sciatic nerve): 1 person, 6.67%
Rheumatoid Arthritis (a chronic progressive disease causing inflammation in the joints): 1 person, 6.67%
Nausea (feeling of having an urge to vomit): 1 person, 6.67%
Muscle Function Loss: 1 person, 6.67%
Diarrhea: 1 person, 6.67%

* Approximation only. Some reports may have incomplete information.

Do you take Tryptophan and have Rashes?

- Check whether Rashes 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 Tryptophan:

Tryptophan (700 reports)

Rashes treatments and more:

Rashes (702,909 reports)

Browse all side effects of Tryptophan:

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 Rashes:

Rashes (3,713 drugs)

Browse all the conditions that are associated with Rashes:

Rashes (6,213 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on l - tryptophan (the active ingredients of Tryptophan) and Tryptophan (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.