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Psychosis Medication Adherence Rating Scale

selection of drugs and pills and other medication
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This Psychosis Medication Adherence Rating helps you assess whether or not you are taking your psychosis medication as directed by your doctor. Taking your psychosis medication exactly as advised by your doctor is important for ensuring your treatment has an optimal effect. This tool can help individuals with schizophrenia and their doctors understand factors which  reduce medication adherence.

Medication Adherence Rating Scale (MARS)

How closely you adhere to your medication plan affects the progression and outcome of your psychosis. The Medication Adherence Rating Scale (MARS) is a self-report measure of medication adherence in psychosis. Use the MARS tool to determine your willingness and ability to take oral medication every day.

1.Do you ever forget to take your medication?
2.Are you careless at times about taking your medicine?
3.When you feel better, do you sometimes stop taking your medicine?
4.Sometimes if you feel worse when you take the medicine, do you stop taking it?
5.I take my medication only when I am sick.
6.It is unnatural for my mind and body to be controlled by medication.
7.My thoughts are clearer on medication.
8.By staying on medication, I can prevent getting sick.
9.I feel weird, like a ´zombie´, on medication.
10.Medication makes me feel tired and sluggish.


This individual has scored  out of 10 on the adherence rating scale.
It is likely they are adhering to their schizophrenia medication.


This individual has scored  out of 10 on the adherence rating scale.
They are not adhering to the prescribed medication schedule.

  1. Thompson K et al. Schizophrenia Research 2000;42:241-7.
  2. Fialko L, et al. Schizophrenia Research 2008;100:53-9.

This information will be collected for educational purposes, however it will remain anonymous.


More information

For more information about drugs, including an introduction to pharmacology, generic versus branded drugs, and the meaning of drug schedules and pregnancy categories, see 
For more information on schizophrenia and its treatments, and some useful tools, animations and videos, see 
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Posted On: 27 September, 2013
Modified On: 15 September, 2017


Created by: myVMC