Harle is the trade name for tamsulosin hydrochloride extended-release capsules, and Prolix is the trade name for finasteride; the combination of tamsulosin hydrochloride and finasteride is generally used to treat prostate enlargement and may need to be taken for life. Tamsulosin, a selective alpha 1-adrenergic receptor blocker, and finasteride, a 5 alpha reductase inhibitor, are able to treat BPH and improve urination difficulties. Elderly patients with prostate enlargement usually need lifelong treatment, otherwise symptoms can get better while taking the medication and reappear once the medication is stopped. It should be noted that after taking tamsulosin may have dizziness, blood pressure drop, increased heart rate, rash, nausea, vomiting and other adverse reactions Tamsulosin is contraindicated in patients with renal insufficiency. There may be adverse reactions such as decreased libido, impotence, low ejaculate volume after taking Finasteride, Finasteride is not suitable for women and children. Patients who need to use tamsulosin and finasteride treatment should be under the guidance of a doctor, should not stop taking the drug on their own.