Effexor xr and Abnormal dreams - a phase IV clinical study of FDA data

Summary:

Abnormal dreams is reported as a side effect among people who take Effexor xr (venlafaxine hydrochloride), especially for people who are female, 40-49 old, have been taking the drug for < 1 month also take Chantix, and have Quit smoking.

The phase IV clinical study analyzes which people have Abnormal dreams when taking Effexor xr. It is created by eHealthMe based on reports of 31,325 people who have side effects when taking Effexor xr from the FDA, and is updated regularly.

What is Effexor xr?

Effexor xr has active ingredients of venlafaxine hydrochloride. It is often used in depression. eHealthMe is studying from 35,233 Effexor xr users. Check the latest studies of Effexor xr.

What is Abnormal dreams?

Abnormal dreams is found to be associated with 1,095 drugs and 1,258 conditions by eHealthMe. Check the latest studies of Abnormal dreams.

On Jul, 17, 2026

31,325 people reported to have side effects when taking Effexor xr.
Among them, 385 people (1.23%) have Abnormal dreams.

Among these 385 people:

* Approximation only. Some reports may have incomplete information.

Do you take Effexor xr and have Abnormal dreams?

- Check whether Abnormal dreams 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 Effexor xr:

Effexor xr (35,233 reports)

Abnormal dreams treatments and more:

Abnormal dreams (33,379 reports)

How severe was Abnormal dreams and when was it recovered:

Abnormal dreams in Effexor xr

Expand to all the drugs that have ingredients of venlafaxine hydrochloride:

Abnormal dreams and drugs with ingredients of venlafaxine hydrochloride (1,023 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 Effexor xr:

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 Abnormal dreams:

Abnormal dreams (1,095 drugs)

Browse all the conditions that are associated with Abnormal dreams:

Abnormal dreams (1,258 conditions)

Related publications that referenced our studies

T.Audi Yanto, I.Huang, F.Nathania Kosasih, NP Hardjo Lugito, "Nightmare and Abnormal Dreams: Rare Side Effects of Metformin?", Case Reports in Endocrinology, 2018 Jan .
T.Audi Yanto, I.Huang, F.Nathania Kosasih, NP Hardjo Lugito, "Nightmare and Abnormal Dreams: Rare Side Effects of Metformin?", Case Reports in Endocrinology, 2018 Jan .

How the study uses the data?

The study uses data from the FDA. It is based on venlafaxine hydrochloride (the active ingredients of Effexor xr) and Effexor xr (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.