How long does it take to relapse if off medicine?

Here are the statistics:

Antipsychotic drugs significantly reduced relapse rates at 1 year

Drugs 27% vs placebo 64%

(so - 64% of people with schizophrenia relapsed within a year if they are off medication)

Fewer patients given antipsychotic drugs than placebo were readmitted
10% vs 26%

10% of people with schizophrenia on medications were readmitted to hospital, vs. 26% not on medication.

See more at: