No side-effects other than 8 hours of quality sleep. It firmly fastens the loose screws in my head throughout the next day.

I take 200 mg immediate-release and 200 mg controlled-release.

You might want to find the right balance between IR and XR if you sleep too long or have trouble sleeping. Quality sleep is helpful in lessening the susceptibility for all kinds of psychotic problems, mild or severe.

Elimination half-life is rather short, so if you experience paradoxical effects during the day (more severe problems than before) you might want to switch to XR or use another antipsychotic.