There are many kinds of drugs to dilate the ureter, the more commonly used are anticholinergics, a-blockers, calcium channel blockers, etc., as follows.
1. Anticholinergic drugs: the more representative drugs are scopolamine, atropine, etc. The purpose is to relieve the spasm of intestinal smooth muscle as well as ureteral smooth muscle, and relieve the discomfort.
2. a receptor blocker: more representative drugs are tamsulosin hydrochloride, doxazosin, these drugs can relax the ureteral smooth muscle, so that the smooth muscle to maintain a state of equilibrium, so as to improve the ureteral spasm.
3. Calcium channel antagonist: commonly used drugs are nifedipine, the main mechanism of action of these drugs is to relieve ureteral spasm, so that the ureteral smooth muscle to achieve the purpose of relaxation, improve ureteral spasm.
If the expansion of the ureter needs to be used to the above kinds of drugs, should be carried out under the guidance of a professional physician, to avoid unauthorized use of drugs.