Cystadane and The flu - a phase IV clinical study of FDA data

Summary:

The flu is reported as a side effect among people who take Cystadane (betaine hydrochloride), especially for people who are male, 2-9 old, also take Hydroxocobalamin, and have Homocystinuria.

The phase IV clinical study analyzes which people have The flu when taking Cystadane. It is created by eHealthMe based on reports of 939 people who have side effects when taking Cystadane from the FDA, and is updated regularly.

What is Cystadane?

Cystadane has active ingredients of betaine hydrochloride. eHealthMe is studying from 947 Cystadane users. Check the latest studies of Cystadane.

What is The flu?

The flu (the flu is caused by an influenza virus) is found to be associated with 2,172 drugs and 2,718 conditions by eHealthMe. Check the latest studies of The flu.

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 Jul, 31, 2026

939 people reported to have side effects when taking Cystadane.
Among them, 36 people (3.83%) have The flu.

Among these 36 people:

What is the gender of people who have The flu when taking Cystadane? *

female: 44.83 %
male: 55.17 %

What is the age of people who have The flu when taking Cystadane? *

What are other drugs people take besides Cystadane? *

What are other side effects people have besides The flu? *

Overdose: 7 people, 19.44%
Nausea And Vomiting: 5 people, 13.89%
Fever: 3 people, 8.33%
Nasopharyngitis (inflammation of the nasopharynx): 3 people, 8.33%
Blood Homocysteine Increased: 3 people, 8.33%
Pharyngitis Streptococcal (inflammation of the pharynx caused by infection from. streptococcus): 3 people, 8.33%
Osteonecrosis Of Jaw (death of bone of jaw): 3 people, 8.33%
Mental Status Changes (general changes in brain function, such as confusion, amnesia (memory loss), loss of alertness, loss of orientation): 2 people, 5.56%
Haematuria (presence of blood in urine): 2 people, 5.56%
Meningitis (inflammation of the protective membranes covering the brain and spinal cord, known collectively as the meninges): 2 people, 5.56%

What are the existing conditions these people have? *

Homocystinuria (inherited disorder in which the body is unable to process certain building blocks of proteins (amino acids) properly): 9 people, 25.00%
Vitamin B12 Deficiency: 3 people, 8.33%
Methylmalonic Aciduria (a disorder, passed down through families, in which the body cannot break down certain proteins and fats and result acid in urine): 3 people, 8.33%
Seizures (abnormal excessive or synchronous neuronal activity in the brain): 1 person, 2.78%
Hypovitaminosis (any of several diseases caused by deficiency of one or more vitamins): 1 person, 2.78%
Constipation: 1 person, 2.78%
Amino Acid Level Decreased: 1 person, 2.78%

* Approximation only. Some reports may have incomplete information.

Do you take Cystadane and have The flu?

- Check whether The flu 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 Cystadane:

Cystadane (947 reports)

The flu treatments and more:

The flu (145,738 reports)

Browse all side effects of Cystadane:

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 The flu:

The flu (2,172 drugs)

Browse all the conditions that are associated with The flu:

The flu (2,718 conditions)

How the study uses the data?

The study uses data from the FDA. It is based on betaine hydrochloride (the active ingredients of Cystadane) and Cystadane (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.