Tamsulosin hydrochloride extended-release tablets precautions, as follows: 1. Elderly patients with urination difficulties need to exclude the diagnosis of prostate cancer before using the drug, so as not to delay the diagnosis and treatment of prostate cancer due to symptomatic relief. 2. Tamsulosin hydrochloride orally disintegrating extended-release tablets may cause a drop in blood pressure when used in excess, so pay attention to the dosage. Close attention should be paid to blood pressure changes when combining antihypertensive drugs. 3. Do not chew the granules in the capsule when taking. 4. Patients with low blood pressure, renal insufficiency and severe hepatic dysfunction should follow medical advice. 5. Due to the possibility of vertigo, attention is required when engaging in work at height, automobile driving and other work with danger. Patients need to pay attention to the fact that the product is forbidden to those who are allergic to any components of Tamsulosin Hydrochloride Extended-Release Tablets and children, and should be used with caution in patients with postural hypotension, renal insufficiency, severe hepatic dysfunction, and those engaged in hazardous work.