Samsca and Weight increased - a phase IV clinical study of FDA data

Summary:

Weight increased is reported as a side effect among people who take Samsca (tolvaptan), especially for people who are female, 60+ old, have been taking the drug for < 1 month also take Opsumit, and have Primary pulmonary hypertension.

The phase IV clinical study analyzes which people have Weight increased when taking Samsca. It is created by eHealthMe based on reports of 8,134 people who have side effects when taking Samsca from the FDA, and is updated regularly.

What is Samsca?

Samsca has active ingredients of tolvaptan. eHealthMe is studying from 8,139 Samsca users. Check the latest studies of Samsca.

What is Weight increased?

Weight increased is found to be associated with 2,901 drugs and 3,926 conditions by eHealthMe. Check the latest studies of Weight increased.

On Feb, 12, 2026

8,134 people reported to have side effects when taking Samsca.
Among them, 144 people (1.77%) have Weight increased.

Among these 144 people:

* Approximation only. Some reports may have incomplete information.

Do you take Samsca and have Weight increased?

- Check whether Weight increased 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 Samsca:

Samsca (8,139 reports)

Weight increased treatments and more:

Weight increased (279,365 reports)

How severe was Weight increased and when was it recovered:

Weight increased in Samsca

Expand to all the drugs that have ingredients of tolvaptan:

Weight increased and drugs with ingredients of tolvaptan (220 reports)

Sub-studies by gender and age:

Female: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Male: 0-1 2-9 10-19 20-29 30-39 40-49 50-59 60+

Browse all side effects of Samsca:

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 Weight increased:

Weight increased (2,901 drugs)

Browse all the conditions that are associated with Weight increased:

Weight increased (3,926 conditions)

How the study uses the data?

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