Olanzapine is an atypical antipsychotic. It works by affecting the levels of chemical messengers (dopamine and serotonin) to improve mood, thoughts and behavior.
Dizziness ,Sleepiness , Orthostatic hypotension (sudden lowering blood pressure on standing) , Dryness in mouth ,Weight gain Increased prolactin , level in blood , Constipation ,Muscle stiffness , Restlessness ,Tremors
Olanzapine is used in the treatment of schizophrenia and mania.