Olanzapine 2.5 mg may have an effect on male function, such as causing a decrease in sexual function, but it is not an absolute situation and varies from person to person. Olanzapine is mainly used for the treatment of schizophrenia, manic episodes, prevention of relapse of bipolar disorder, etc. The drug may cause a decrease in sexual functioning, but it varies from person to person, and not all people will experience this adverse reaction. Apart from this, common adverse reactions include drowsiness, increased appetite, dizziness, elevated cholesterol and blood sugar, etc., dyskinesia, joint pain, fever, malaise and fatigue. This product should be contraindicated if you are allergic to the product, contraindicated in patients at risk of narrow-angle glaucoma, and if serious adverse reactions occur during the use of the drug, you should immediately seek medical attention, and how the drug should be used and whether to discontinue should be carried out under the guidance of a medical professional.