Drotaverine Hydrochloride is mainly used to treat smooth muscle spasms caused by biliary tract disorders, urinary tract disorders, gastrointestinal disorders, etc. It is also used in the treatment of gallbladder disorders, stress bowel syndrome and other diseases. Drotaverine Hydrochloride is an isoquinoline derivative, a pro-muscle antispasmodic that acts directly on smooth muscle cells, effectively relieving spasms by allowing smooth muscle to diastole. Drotaverine hydrochloride is contraindicated in people who are allergic to the components of the drug, people with hepatic or renal failure, people with cardiac insufficiency, and children under one year of age. Some adverse reactions may occur after the use of the drug, such as palpitations, hypotension, headache, nausea, etc. If the adverse reactions are obvious, it is necessary to stop the drug and consult a doctor in time. Drotaverine Hydrochloride should be used under the supervision of a doctor, and patients should not use the drug on their own.