Olanzapine is used in the treatment of schizophrenia and mania.
How Olanzapine Works Olanzapine is an atypical antipsychotic that affects the levels of chemical messengers, specifically dopamine and serotonin, to improve mood, thoughts, and behavior.
Common side effects of Olanzapine include dizziness, sleepiness, weight gain, increased prolactin levels in the blood, constipation, increased appetite, weakness, extrapyramidal symptoms, increased liver enzymes, altered blood lipid levels, increased glucose levels in the blood, anticholinergic effects, and decreased white blood cell count (neutrophils).