Tamsulosin Hydrochloride Extended-Release Capsules are used to relieve dysuria caused by benign prostatic hyperplasia. The drug has a highly selective blocking effect on the smooth muscle of the urethra, bladder neck and prostate, which relaxes the smooth muscle, reduces urethral pressure and improves urinary obstruction. Do not chew and take the medicine, but swallow it whole. Adverse reactions such as dizziness, decreased blood pressure, increased heart rate, rash, nausea, vomiting, stomach upset, abdominal pain, lack of appetite, nasal congestion, swelling, difficulty swallowing, and a feeling of tiredness may occur after taking the medicine. Please note that this drug is contraindicated in hypersensitivity; renal insufficiency patients; pregnant and lactating women; children. Patients with postural hypotension and coronary artery disease should use with caution. If you need to use the drug patients, please under the guidance of a doctor or pharmacist, strictly comply with the medical advice to take medication, do not self-medication.