Oleanz RT 20mg tablet, containing the active ingredient olanzapine, is used to manage schizophrenia and severe manic episodes associated with bipolar disorder. It works by blocking brain receptors for dopamine and serotonin, helping to reduce symptoms like hallucinations and mood swings. According to Netmeds, Olanzapine is an antipsychotic medication, and according to PharmEasy it should not be used as a sleep aid.