If you are not having your period on antipsychotics, you can test yourself to see if you are pregnant before considering whether it is a side effect of the antipsychotics. If you are pregnant, you should go to the obstetrics and gynecology department, and if you are not pregnant, you can go to a psychiatrist. Women who are sexually active and do not menstruate should first rule out pregnancy, which can lead to lack of menstruation. The endocrine metabolic function of patients taking antipsychotics for a long time will be affected to a certain extent, prolactin secretion increases, estrogen level changes, resulting in female lactation, amenorrhea and other clinical manifestations. If a woman does not have menstruation after taking antipsychotic drugs, she should go to the hospital in time to clarify the cause, and should adjust the medication under the guidance of the doctor, and should not adjust the medication on her own without a clear reason.