I read your question carefully and I understand your concern.
You must understand that while he may feel well now it is essential to treat the predisposing causes for
stroke in order not to have another stroke. So if he has conditions like
high blood pressure that needs life long treatment as it is a chronic condition he will always have. For that reason the two drugs which are essential for him to take for stroke prevention are Stamlobeta (which contains two drugs for blood pressure -
Atenolol and Amlodipin) and Clopitab (
Clopidogrel) which is a blood thinner.
The other drugs:
-viminta: it's a combination of different vitamins, so no side effects, but he can interrupt them without fearing any harm.
-Stalopam: it's an antidepressive and antianxiety drug, so it's not for the stroke itself, I don't know why it was given to him, perhaps the doctor noticed signs of
depression or anxiety, you should discuss this with your doctor, whether to continue or not will depend from presence of anxiety and depression.
-rivotill: I don't know any drug called "rivotill", did you mean rivotril? If yes it is a drug used for anxiety or
epileptic seizure. If given for anxiety I suggest to be interrupted since Stalopam already takes care about that. If he has had seizures and was given for that, I still would suggest another alternative because it'll develop tolerance (will not have the same effect after some time), there are better first choice for
epilepsy.
-Citiso: I haven't heard about it and can't find it on internet. Perhaps you have got the spelling wrong.
Regarding your other questions, yes can resume teaching. MRI importance depends on the reason, if the diagnosis of stroke is certain and the cause is known then it's not essential. It would be essential if another diagnosis was suspected or if blood vessel investigation was needed regarding the cause.
I hope to have been of help.