Olanzapine is an antipsychotic drug commonly used to treat schizophrenia, bipolar disorder, and other mental health issues. While it is an effective treatment for many psychiatric disorders, it does have some potential side effects. Dizziness is one of the most common side effects associated with use of olanzapine. The exact cause of olanzapine-related dizziness is not clear, but it may be linked to its anticholinergic properties, which can affect the autonomic nervous system and the balance mechanism in the inner ear. With the inner ears being involved, an individual may experience light-headedness, vertigo, and other symptoms related to a disruption in their balance. In addition to causing dizziness, olanzapine may also lead to other side effects such as: • Dry mouth • Weight gain • Sleepiness • Lowered blood pressure • Constipation • Headache • Fatigue • Nausea • Blurred vision • Muscle twitching • Increased appetite If you experience any of these issues while on olanzapine, it is important to contact your health care provider immediately. They will be able to assess your situation and determine the best course of action. Everyone responds to medication differently, so talk to your provider about other potential treatments that may be more appropriate for you.