Alli and Hallucinations - a phase IV clinical study of FDA data

Summary:

Hallucinations is reported as a side effect among people who take Alli (orlistat), especially for people who are female, 50-59 old, have been taking the drug for 6 - 12 months also take Remeron, and have Weight decreased.

The phase IV clinical study analyzes which people have Hallucinations when taking Alli. It is created by eHealthMe based on reports of 22,320 people who have side effects when taking Alli from the FDA, and is updated regularly.

What is Alli?

Alli has active ingredients of orlistat. It is often used in weight loss. eHealthMe is studying from 22,818 Alli users. Check the latest studies of Alli.

What is Hallucinations?

Hallucinations (sensations that appear real but are created by your mind) is found to be associated with 1,893 drugs and 2,727 conditions by eHealthMe. Check the latest studies of Hallucinations.

On Aug, 12, 2026

22,320 people reported to have side effects when taking Alli.
Among them, 18 people (0.08%) have Hallucinations.

Among these 18 people:

How long have people been on Alli when they have Hallucinations? *

What is the gender of people who have Hallucinations when taking Alli? *

female: 100 %
male: 0.0 %

What is the age of people who have Hallucinations when taking Alli? *

What are other drugs people take besides Alli? *

What are other side effects people have besides Hallucinations? *

Hypoaesthesia (reduced sense of touch or sensation): 13 people, 72.22%
Headache (pain in head): 12 people, 66.67%
Dyspnea (difficult or laboured breathing): 12 people, 66.67%
Fall: 12 people, 66.67%
Coordination Abnormal (abnormal movement): 11 people, 61.11%
Dyskinesia (abnormality or impairment of voluntary movement): 11 people, 61.11%
Muscle Atrophy (a decrease in the mass of the muscle): 11 people, 61.11%
Foot Deformity (functional disability of foot): 11 people, 61.11%
Furuncle (infection of the hair follicle): 11 people, 61.11%
Gait Disturbance: 11 people, 61.11%

What are the existing conditions these people have? *

Weight Decreased: 2 people, 11.11%
Multiple Myeloma (cancer of the plasma cells): 1 person, 5.56%

* Approximation only. Some reports may have incomplete information.

Do you take Alli and have Hallucinations?

- Check whether Hallucinations 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 Alli:

Alli (22,818 reports)

Hallucinations treatments and more:

Hallucinations (98,683 reports)

Browse all side effects of Alli:

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 Hallucinations:

Hallucinations (1,893 drugs)

Browse all the conditions that are associated with Hallucinations:

Hallucinations (2,727 conditions)

Related publications that referenced our studies

Ezeji GC, Inoue T, Bahtiyar G, Sacerdote A, "Hallucinations associated with miglitol use in a patient with chronic kidney disease and hypothyroidism", BMJ case reports, 2015 Feb .
Boschee T, DO PGY II, "Acute Hallucinations: Where Did That Come From?", , 2007 Jan .
Ezeji GC, Inoue T, Bahtiyar G, Sacerdote A, "Hallucinations associated with miglitol use in a patient with chronic kidney disease and hypothyroidism", BMJ case reports, 2015 Feb .
Boschee T, DO PGY II, "Acute Hallucinations: Where Did That Come From?", , 2007 Jan .

How the study uses the data?

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