If he believes the doctor who prescribed medication is under orders from demons to poison him. The most likely diagnosis for this man is: schizophrenia.
Schizophrenia is a mental disorder in which a person translate or misinterprete things in other way round.
A person that is suffering with this mental disorder will often act and think in an abnormal way or in a way that is totally difference from the normal way.
Therefore the most likely diagnosis for this man is: schizophrenia.
Learn more about Schizophrenia here: https://brainly.com/question/25701390
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