Taking olanzapine is generally not recommended for pregnancy, and specific medications are prescribed by your doctor. Olanzapine is suitable for the treatment of schizophrenia, if the initial treatment is effective can be used for subsequent maintenance treatment, and can obtain better clinical results, in addition, the drug can also be used for the treatment of moderate to severe manic episodes, and in the premise of effective treatment, for the prevention of bipolar disorder relapse. The exact mechanism of action is currently unknown. Olanzapine should be contraindicated in patients with a known risk of narrow-angle glaucoma, patients who are allergic to the product. For patients who are pregnant or are planning to become pregnant during treatment with the drug, the drug should be used only if the possible benefit outweighs the potential risk to the fetus, so pregnancy is generally not recommended while taking the drug. Common adverse reactions to olanzapine include inability to sit still, increased appetite, drowsiness, dizziness, and weight gain. Specific drug use should be under the guidance of a specialist.