Thanks for trusting Ayurveda and seeking help on authentic platform. Ayurveda is very simple i.e. Krodh Anger to be managed by love so simple which is in ur n ur family members hand rest health conditions needed to be evaluated in clinic by examining him.

You need a proper counseling. First share these things. :-His Bp :- ase koi bat jo unko pareshan karti ho :- kya wo apki bat samjh pate ha. :- any kinde of medicine he is taking. :- I can give him meditation classes .for this he need online counseling. :- start this :- One teaspoon badam rogan  oil mix with cow milk give him two times in day regular for 3 4 months . For medicine you need a counseling. :- stay away from news channels and phone .

This is senile psychosis(psychological issues in old age)...different people shows different pattern of behavior depending upon his mental and physical health...some gets violent while some suffers from severe depression... Since at this age and with such behavior psychological consultation is almost of 0 use... Medicine will cover main part of his issue but he needs some other involvement also like yoga or some spiritual club or whatever depending on his personality....i am a praanic healer also and i can see blockages in his swadhishthan chakra and agnya chakra which i can resolve through distant praanic healing, that's fully your choice... I need proper paper work on his case like history of diseases such as high BP etc..after this only i can help you from this issue

As the age advances mental irritation may be increased. Try to find out any fear factor , make the environment as he likes. Some times there is nothing any surrounding issue but the irritation of old person is continue. So there is less role for medicines, much better to calm down him with chanting , worship or yagya or with any other way as he wants. Only sedative medicines will relax him , but this type of medicine may alter his physical efficacy.

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as you mentioned he had history off brain hemorrhage so he must be on some medication too.... sometimes medicine are helpful for certain condition but taking them for longer duration may create some unwanted effect and behavioral changes sudden aggressiveness can be one of those unwanted side effect. good news is this can be reversed and completely come under control need consistent and focus effort.

Take proper knowledge about this first Chat online with me if you want permanent solution