HALO is the trade name and the generic name is Tamsulosin Hydrochloride Extended-Release Capsules, and how long it takes to see results varies from person to person, ranging from 4 to 5 days to 1 month. Tamsulosin hydrochloride extended-release capsules are often used to treat urinary disturbances caused by benign prostatic hyperplasia. How long it takes to see results after taking the drug is related to the individual’s physical condition and the severity of the disease, and cannot be generalized. Patients with mild illnesses generally 4 to 5 days urinary disorders began to improve, some patients with more serious conditions, need to take a week or more time to see the effect; some patients to take a month or so to see the effect of the obvious. The drug is usually swallowed whole after meals, not chewed. Adverse reactions that may occur when taking the drug include dizziness, decreased blood pressure, nausea, vomiting, skin rash and other symptoms. It is contraindicated in people who are allergic to the product and in patients with renal insufficiency. Use with caution in patients with postural hypotension and coronary heart disease. It is prohibited for pregnant women, lactating women, and children. If used together with antihypertensive drugs, closely monitor changes in blood pressure. If you need to use the drug, it should be used reasonably under the guidance of a doctor to avoid adverse reactions.