How long does selegiline phosphate tablets take effect is mainly related to the severity of the patient’s condition, the duration of the disease and individual differences, it is difficult to generalize. Selegiline phosphate oral 100mg, 1~4 hours to reach the peak plasma drug concentration, half-life of 12.4 hours. Sitagliptin phosphate tablets are a western drug for diabetes. It can be used with dietary control and exercise to improve glycemic control in patients with type 2 diabetes, and can be used in combination with metformin, sulfonylureas, and insulin. How long to take selegiline phosphate tablets have effect is difficult to determine, it is related to the severity of the patient’s condition, the length of treatment time with medication and individual physical differences. Selegiline phosphate tablets can cause allergic reactions, acute pancreatitis, elevated liver enzymes, renal hypoplasia, headache, arthralgia, myalgia, limb pain, back pain and other adverse reactions. It is contraindicated for those who are allergic to any of the ingredients in this product. This product should not be used in patients with type 1 diabetes or for the treatment of diabetic ketoacidosis. If you need to use the drug, you need to use it under the guidance of a doctor, do not use the drug on your own to avoid adverse effects on the body.