manic psychosis disorder

My sister is undergoing treatement of manic psychosis treatement since 2006 due to father death.
the medicine which she is taken are
1)Oleanz 10 mg Tab
2)Lonazep 2 mg
3)Nitrest 2mg FC tab
4)Pacitane 2 mg FC tab
5)Dicorate ER 500Mb tab

I want to know that sometime she react in childish manner though she is 25.
Is she capable of taking decision or not?

[boogieman]

Hello. Only a psych professional would be qualified to judge an individuals mental status in this regard. Take care, GM