Clonazepam and Acute brain syndrome - from FDA reports

Acute brain syndrome is found among people who take Clonazepam, especially for people who are male, 60+ old , have been taking the drug for 1 - 6 months, also take medication Lorazepam, and have Depression. This study is created by eHealthMe based on reports of 76,216 people who have side effects when taking Clonazepam from FDA, and is updated regularly.

How to use this study: bring a copy to your health teams to ensure drug risks and benefits are fully discussed and understood.

Who is eHealthMe: we are a data analysis company who specializes in health care industry. Our original studies have been referenced on 500+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and EANO. On eHealthMe, you can research drugs and monitor them (see testimonials).

On Oct, 11, 2018

76,216 people reported to have side effects when taking Clonazepam.
Among them, 481 people (0.63%) have Acute brain syndrome

Number of reports submitted per year:

Could Clonazepam cause Acute brain syndrome?

Time on Clonazepam when people have Acute brain syndrome *:

Gender of people who have Acute brain syndrome when taking Clonazepam *:

  • female: 47.3 %
  • male: 52.7 %

Age of people who have Acute brain syndrome when taking Clonazepam *:

Top conditions involved for these people *:

  1. Depression: 71 people, 14.76%
  2. Psychotic Disorder: 43 people, 8.94%
  3. Pain: 36 people, 7.48%
  4. Neck Pain: 36 people, 7.48%
  5. Sedation: 34 people, 7.07%

Click here to view more results or personalize the results to your gender and age

Top co-used drugs for these people *:

  1. Lorazepam: 61 people, 12.68%
  2. Omeprazole: 58 people, 12.06%
  3. Mirtazapine: 56 people, 11.64%
  4. Diazepam: 54 people, 11.23%
  5. Seroquel: 36 people, 7.48%

Click here to view more results or personalize the results to your gender and age

Top other side effects for these people *:

  1. Confusional State: 145 people, 30.15%
  2. Agitation (state of anxiety or nervous excitement): 135 people, 28.07%
  3. Confusion: 108 people, 22.45%
  4. Fever: 97 people, 20.17%
  5. Depression: 85 people, 17.67%

Click here to view more results or personalize the results to your gender and age

* Approximation only. Some reports may have incomplete information.

FDA reports used in this study

Do you have Acute brain syndrome while taking Clonazepam?

You are not alone:

Related studies


Clonazepam has active ingredients of clonazepam. It is often used in stress and anxiety. (latest outcomes from Clonazepam 81,013 users)

Acute brain syndrome

Acute brain syndrome (acute temporary reversible impairment of brain functioning) has been reported by people with depression, pain, high blood pressure, insomnia, schizophrenia (latest reports from 25,197 Acute brain syndrome patients).

Drugs that are associated with Acute brain syndrome
Acute brain syndrome (1,911 drugs)
Could your condition cause Acute brain syndrome
Acute brain syndrome (1,844 conditions)
Clonazepam side effects
Browse all side effects of Clonazepam
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

Related publications that referenced our studies

What would happen?

Predict new side effects and undetected conditions when you take Clonazepam and have Acute brain syndrome

Recent updates

Recent general studies
Recent personal studies

NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

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 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, and has not been supported by scientific studies or clinical trials unless otherwise stated. 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.

You may report adverse side effects to the FDA at or 1-800-FDA-1088 (1-800-332-1088).

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.