Hello . Good morning. I understood ur concern towards brother in law. I want you to understand few things: 1. Depression and schizophrenia both can't be diagnosed at the same time. Either can exist by ruling the possibility of other one. 2. Don't think as stalopam is antidepressants ,that means it's being used for Depression. All antidepressants are used in numerous case as augmentation or off label use. 3.Chronic psychiatric illness often relapse, reoccur and become resistant. If necessary , Medicines has to be changed or there dose had to be increased to show the desirable effect. I understand psychiatric illness becomes a family burden in some cases ,not all.

Stopping antipsycotic abruptly, will result in severe withdrawal effects and also symptoms  reappearing with more severity. And most of schizophrenic are not having enough insights, especially when symptoms starts to reappear, to take such a big step.

Treatment for schizophrenia goes longway. Stopping treatment doesn't seem to be a wise decision.

If risperidone is not working, he should be tried on other antipsychotics. There are multiple options which can be tried to stabilise his symptoms. But, if he stops taking medications, chances of recovery will be less in the future even if he will be put on medications. Hence, take a consultation from any psychiatrist for further treatment