Common diarrhea drugs are montelukast, levofloxacin, etc. But do not use drugs blindly, diarrhea may be caused by gastroenteritis, may be caused by Crohn’s disease, and may be caused by irritable bowel syndrome, the causes are different, the use of drugs are different. 1. Gastroenteritis: Gastroenteritis can lead to diarrhea, the disease is due to bacterial viruses and other pathogenic microbial infections, alcoholism, medication and other reasons, in the treatment should pay attention to rest, and can use montelukast, levofloxacin, scopolamine and other drugs for treatment. 2. Crohn’s disease: Crohn’s disease can also lead to symptoms of diarrhea, which is a chronic non-specific inflammatory disease of the digestive tract, and the treatment requires the use of LiuZiShiYuanPi, budesonide, azathioprine, infliximab and other drugs for treatment. 3. Irritable bowel syndrome: irritable bowel syndrome can also lead to symptoms of diarrhea, which is a common dysfunctional disease, the treatment can be treated through drug therapy, psychotherapy and other methods of treatment, drug therapy can be scopolamine, loperamide, bifidobacteria preparations and other drugs. In addition to the above factors, other causes can also lead to patients with diarrhea symptoms, it is recommended to consult a doctor in a timely manner to identify the cause and ask the doctor to dispose of it. Drugs need to be used under the guidance of a medical professional, and should not be used arbitrarily on their own.