Magnesium sulfate laxatives can be taken within one to two hours each time by mixing 100~400 ml of warm boiled water. Magnesium sulfate laxative can be 5~10 grams of magnesium sulfate, dissolved in 10~400 milligrams of lukewarm water to take, usually in one or two hours to drink, and then drink 2000~2800 milliliters of lukewarm water, and then to achieve diarrhea to clean the intestinal tract. Application of magnesium sulfate laxative may cause dizziness and vertigo, and overdose can lead to electrolyte disorders, cardiac arrhythmia, confusion, myoclonic spasms and other adverse reactions. Magnesium sulfate laxative is contraindicated in acute intestinal bleeding and acute abdomen; contraindicated in pregnant and lactating women. It is recommended to take medication under the guidance of a physician, do not take medication on your own, so as not to cause adverse reactions.