Diabetes has many causes of diarrhea, such as the side effects of glucose-lowering drugs, infections, etc., should be treated according to the cause of the disease, can be used under the guidance of the doctor, such as montelukast and other anti-diarrheal drugs, can not blindly take drugs. 1. Side effects of hypoglycemic drugs: diabetic patients will choose hypoglycemic drugs according to their specific conditions, different hypoglycemic drugs have different side effects, among which, hypoglycemic drugs such as acarbose often lead to diarrhea, at this time, you should inform your doctor to adjust the dosage of the drug by the doctor, if you adjust the dosage of hypoglycemic drugs and still have diarrhea, you can use anti-diarrheal drugs such as montelukast under the guidance of a doctor. 2. Infection: diabetic patients are prone to secondary infections, when secondary gastrointestinal viral or bacterial infections, such as Coxsackie virus, etc., diarrhea, it is recommended to take antiviral drugs or antibiotics under the guidance of a doctor, such as ribavirin, gentamicin and so on. 3. Other: Certain triggers can also cause diarrhea, such as unclean diet, which can be treated with antidiarrheal drugs such as montelukast under the guidance of a doctor. For diabetic patients with diarrhea, it is recommended to seek timely medical attention for early treatment.