There is no clear rule on how long to take napadil tablets, it varies from person to person. Naftopidil Tablet instruction dosage is the initial dose for adults, once a day, one tablet at a time, before bedtime. Patients can take the drug under the guidance of the doctor, according to their own situation, correct and reasonable. Naftopidil tablets are suitable for urinary disorders caused by benign prostatic hyperplasia. Adverse reactions such as dizziness, erectile vertigo, heaviness of head, headache, tinnitus, constipation, stomach upset, swelling, chills, elevated AST and elevated ALT are occasionally seen after taking the drug. Naftopidil Tablets are contraindicated in those who are allergic to any of the ingredients. The product should be used with caution in people with hepatic impairment, patients with severe cardiovascular and cerebrovascular diseases, drivers of aerial work and motor vehicles, and the elderly. This product should not be taken by patients with hereditary galactose intolerance and Lapp lactase deficiency or glucose galactose malabsorption. If you need to use Naftopidil Tablets, please consult a professional doctor, follow the doctor’s instructions, and use the medication reasonably.