Selegiline Hydrochloride drug is misnamed and is currently marketed as Selegiline Phosphate tablets, which are hypoglycemic drugs used to improve blood sugar control in type 2 diabetes mellitus. The effects of selegiline phosphate are: with diet and exercise, the drug is used to regulate elevated blood glucose in type 2 diabetics; with metformin hydrochloride co-application, to regulate type 2 diabetes mellitus. Adverse reactions: abdominal pain, nausea, diarrhea, headache, arthralgia, pancreatitis, hypoglycemia, edema, and rash may occur during the use of the drug. Contraindications: children as well as the elderly should be cautious; obvious abnormalities of liver and kidney function should be cautious; allergic to the product is prohibited. The drug should be taken under the guidance of a professional physician, not self-medication. If severe gastrointestinal reactions occur during the use of the drug, obvious abdominal pain and generalized rash, stop using the drug in time and seek medical observation.