I can tell you this is a fact, right here in the USA it happens often. It does not matter what insurance plan is in place. Patients with dementia have been prescribed "zyprexa". http://www.zyprexa.com/index.jsp
Anyone who is a caregiver needs to research all prescriptions before administering them, the doctors will prescribe them, (usually in lowest doses and for limited lengths of time) regardless and tell you very little about their safety.

Psychotropic drugs are the TASERs of the medical world.

And every day millions take them for illnesses which are largely inventions of the psychologists, in order to sell drugs on behalf of the pharmaceutical companies.