Can i crush 2mg tab risperidone an putvin my brother’s drink. Because he doesnt want to take medication. Is it effective. Or the medication might not working?
You should never crush meds. 
Never do that. But there is a liquid form of risperidone that can be ordered by his doctor, and an injectable form.
Also,
I’d like to encourage you to join our forum for Family and Caregivers that can be found at:
While this is a peer support forum for people with schizophrenia and other closely related psychotic disorders, the Family forum is specifically for people like yourself, who have a loved one they are concerned about.
Also, please let your loved one know about this forum as they may find it helpful.
Best of luck,
Ninjastar
Volunteer Moderator