Miso generally refers to misoprostol tablets, which are taken on the third day for medication abortion and usually need to be taken on an empty stomach. Misoprostol tablets can act to enhance uterine tone and intrauterine pressure, soften the cervix, etc. They are used in sequential combination with mifepristone to terminate intrauterine pregnancies up to 9 weeks, and are also used in the treatment of peptic ulcers. It is contraindicated in pregnancy or in women who cannot rule out the possibility of pregnancy, in patients with hypersensitivity to the drug, cardiac, hepatic and renal diseases, as well as adrenocortical insufficiency. When used to terminate a pregnancy within seven weeks, mifepristone tablets may be taken orally on an empty stomach or two hours after a meal, and misoprostol tablets are usually taken orally on an empty stomach early in the morning of the third day. Fasting is required when taking Misoprostol tablets because taking the medicine on an empty stomach allows for better and faster absorption of the medicine and promotes uterine contractions for the purpose of abortion. Adverse reactions such as dizziness, headache and other neurological symptoms, diarrhea, abdominal pain and other gastrointestinal symptoms, and skin rashes may occur after using the drug. Patients who need to use Misoprostol Tablets for treatment should use the drug under the guidance of a doctor, and it is recommended to consult a doctor for the specific time of taking the drug.