Phosphate Magnesium Powder has anti-inflammatory, analgesic and cathartic effects. It is currently mostly used externally and rarely taken orally.Magnesium Ascorbyl Phosphate can be mixed with water in proportion and applied as a wet compress to treat local redness, swelling, pain, trauma or aseptic inflammation. If it is acute inflammation, it can be dissolved in cold water, and if it is chronic inflammation, it can be dissolved in hot water. It can relieve pain and inflammation, and can also relieve local swollen tissue. In addition, Ascorbic Acid Magnesium Phosphate Powder, also known as Epsom salt, can be mixed with water for drinking, can be used as a cathartic, can be used for intestinal preparation or to treat stubborn constipation. At present, Ascorbic Acid Magnesium Phosphate is generally not used for intestinal preparation before colonoscopy, but polyethylene glycol electrolyte powder with fewer side effects is used instead.