Drugs that enlarge the ureter to help drain stones include tamsulosin and scopolamine. Clinical can expand the patient’s ureter, help the patient’s urethra stone discharge more drugs, the current clinical commonly used types of drugs for the alpha blocker, such as tamsulosin, doxazosin and so on. This type of drug can block the patient’s vascular smooth muscle α1 receptor, and directly play a role in relaxing the smooth muscle, can play a role in expanding the patient’s ureter, to help the discharge of stones. In addition to the above types of drugs, such as scopolamine and other M receptor antagonists, can also relax the patient’s ureteral smooth muscle, to help the stone discharge. At the same time, this type of drug also has the effect of relieving vasospasm in the patient’s body, and it is also commonly used in clinics to treat patients with local pain caused by smooth muscle spasm in the ureter and gastrointestinal tract, as well as cerebral thrombosis and cerebral infarction caused by cerebral vasospasm, and many other diseases. It is recommended that patients who have recently been diagnosed with ureteral stones avoid taking medication without authorization, seek medical advice first, and choose the appropriate medication under the guidance of a doctor.