Nardil and Abnormal behaviour - a phase IV clinical study of FDA data

Summary:

Abnormal behaviour is reported as a side effect among people who take Nardil (phenelzine sulfate), especially for people who are female, 50-59 old, have been taking the drug for 10+ years also take Alprazolam, and have Panic disorder.

The phase IV clinical study analyzes which people have Abnormal behaviour when taking Nardil. It is created by eHealthMe based on reports of 2,128 people who have side effects when taking Nardil from the FDA, and is updated regularly.

What is Nardil?

Nardil has active ingredients of phenelzine sulfate. It is often used in depression. eHealthMe is studying from 2,327 Nardil users. Check the latest studies of Nardil.

What is Abnormal behaviour?

Abnormal behaviour is found to be associated with 1,843 drugs and 2,176 conditions by eHealthMe. Check the latest studies of Abnormal behaviour.

On Feb, 04, 2026

2,128 people reported to have side effects when taking Nardil.
Among them, 20 people (0.94%) have Abnormal behaviour.

Among these 20 people:

How long have people been on Nardil when they have Abnormal behaviour? *

What is the gender of people who have Abnormal behaviour when taking Nardil? *

female: 90 %
male: 10 %

What is the age of people who have Abnormal behaviour when taking Nardil? *

What are other drugs people take besides Nardil? *

What are other side effects people have besides Abnormal behaviour? *

Memory Loss: 11 people, 55.00%
Drug Ineffective: 11 people, 55.00%
Depersonalisation: 11 people, 55.00%
Panic Disorder: 11 people, 55.00%
Stress And Anxiety: 11 people, 55.00%
Dissociation: 10 people, 50.00%
Crying: 10 people, 50.00%
Suicidal Ideation: 9 people, 45.00%
Anorexia (eating disorder characterized by immoderate food restriction and irrational fear of gaining weight): 9 people, 45.00%
Confusional State: 8 people, 40.00%

What are the existing conditions these people have? *

Panic Disorder: 11 people, 55.00%
Stress And Anxiety: 1 person, 5.00%
Quit Smoking: 1 person, 5.00%
Headache (pain in head): 1 person, 5.00%
Electrolyte Imbalance: 1 person, 5.00%

* Approximation only. Some reports may have incomplete information.

Do you take Nardil and have Abnormal behaviour?

- Check whether Abnormal behaviour 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 Nardil:

Nardil (2,327 reports)

Browse all side effects of Nardil:

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 behaviour:

Abnormal behaviour (1,843 drugs)

Browse all the conditions that are associated with Abnormal behaviour:

Abnormal behaviour (2,176 conditions)

Drugs similar to Nardil and Abnormal behaviour :

How the study uses the data?

The study uses data from the FDA. It is based on phenelzine sulfate (the active ingredients of Nardil) and Nardil (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.