Risperidone affects menstruation when taken. Risperidone is a commonly used antipsychotic in clinical practice, which improves the positive symptoms of schizophrenia by antagonizing the dopamine D2 receptor. At the same time, it also binds to the 5-hydroxytryptamine and dopamine receptors in the central system to play an antagonistic role, which may cause extrapyramidal side effects such as elevated lactation and amenorrhea, and therefore may affect menstruation after taking it. It should also be noted that this product can cause anxiety, drowsiness, dizziness, nausea, constipation and other side effects after taking it. It should be contraindicated for people who are allergic to this product and children under 15 years old, and should be used with caution in patients with Parkinson’s syndrome and epilepsy, and is not recommended for use in pregnant women and lactating women. For patients with mental illness, it is recommended that they go to a regular hospital, under the guidance of the doctor to choose the appropriate medication and active treatment, not blindly use drugs.