Ranitidine and Bladder dysfunction - a phase IV clinical study of FDA data

Summary:

Bladder dysfunction is reported as a side effect among people who take Ranitidine (ranitidine), especially for people who are female, 30-39 old, have been taking the drug for < 1 month also take Acetaminophen, and have Relapsing-remitting multiple sclerosis.

The phase IV clinical study analyzes which people have Bladder dysfunction when taking Ranitidine. It is created by eHealthMe based on reports of 233,168 people who have side effects when taking Ranitidine from the FDA, and is updated regularly.

What is Ranitidine?

Ranitidine has active ingredients of ranitidine. It is often used in gastroesophageal reflux disease. eHealthMe is studying from 234,474 Ranitidine users. Check the latest studies of Ranitidine.

What is Bladder dysfunction?

Bladder dysfunction is found to be associated with 257 drugs and 271 conditions by eHealthMe. Check the latest studies of Bladder dysfunction.

On Jan, 14, 2026

233,168 people reported to have side effects when taking Ranitidine.
Among them, 18 people (0.01%) have Bladder dysfunction.

Could Ranitidine cause Bladder dysfunction?

Among these 18 people:

How long have people been on Ranitidine when they have Bladder dysfunction? *

What is the gender of people who have Bladder dysfunction when taking Ranitidine? *

female: 70.59 %
male: 29.41 %

What is the age of people who have Bladder dysfunction when taking Ranitidine? *

What are other drugs people take besides Ranitidine? *

Acetaminophen: 7 people, 38.89%
Gravol: 6 people, 33.33%
Ventolin: 5 people, 27.78%
Acyclovir: 5 people, 27.78%
Cetirizine Hydrochloride: 5 people, 27.78%
Gabapentin: 5 people, 27.78%
Methylprednisolone Sodium Succinate: 5 people, 27.78%
Baclofen: 4 people, 22.22%
Tramadol: 4 people, 22.22%
Metoclopramide: 4 people, 22.22%

What are other side effects people have besides Bladder dysfunction? *

Nausea (feeling of having an urge to vomit): 12 people, 66.67%
Fever: 12 people, 66.67%
Fatigue (feeling of tiredness): 11 people, 61.11%
Abdominal Pain Upper: 9 people, 50.00%
Lymphocyte Count Decreased: 9 people, 50.00%
Red Blood Cell Count Increased: 9 people, 50.00%
Fluid Retention (an abnormal accumulation of fluid in the blood): 8 people, 44.44%
Dizziness: 8 people, 44.44%
Headache (pain in head): 7 people, 38.89%
Weakness: 7 people, 38.89%

What are the existing conditions these people have? *

Relapsing-Remitting Multiple Sclerosis (reoccurrence of an inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 9 people, 50.00%
Gastric Disorder (disease of stomach): 6 people, 33.33%
Birth Control: 4 people, 22.22%
Secondary Progressive Multiple Sclerosis (a stage of ms which comes after relapsing remitting ms in many cases): 3 people, 16.67%
Primary Progressive Multiple Sclerosis (primary progressive inflammatory disease in which the insulating covers of nerve cells in the brain and spinal cord are damaged): 3 people, 16.67%
Muscle Spasticity (tight or stiff muscles and an inability to control those muscles): 3 people, 16.67%
Multiple Sclerosis Relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 3 people, 16.67%
Multiple Sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 3 people, 16.67%
Herpes Zoster: 3 people, 16.67%
Back Pain: 3 people, 16.67%

* Approximation only. Some reports may have incomplete information.

Do you take Ranitidine and have Bladder dysfunction?

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Related studies:

Effectiveness of, long term effects of, and alternative drugs to Ranitidine:

Ranitidine (234,474 reports)

Browse all side effects of Ranitidine:

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 Bladder dysfunction:

Bladder dysfunction (257 drugs)

Browse all the conditions that are associated with Bladder dysfunction:

Bladder dysfunction (271 conditions)

Drugs similar to Ranitidine and Bladder dysfunction :

How the study uses the data?

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