Mainly focus on positive symptoms (e.g. hallucinations)
Side effects are well understood and include short-term drowsiness, blurred vision, weight gain; long-term increased risk of tardive dyskinesia (muscle stiffness)
Not fully understood; it has been found to decrease blood flow and metabolism in the temporal lobes, affect immediate responses, and alter neurochemical levels (e.g. dopamine) and reduce the severity of any underlying affective symptoms
Can cause physical trauma, heart problems, and memory loss