The generic name of Harle is Tamsulosin Hydrochloride, if you take it and it doesn’t work it may not last long enough or work well enough, you can take it for a few more days or add and switch to another medication. Tamsulosin hydrochloride is a medication that treats prostate enlargement and relieves the symptoms of difficult and obstructed urination. The course of medication needs to be increased or decreased according to the patient’s age and symptoms. If there is no effect after taking the medication, it is possible that the medication is taken for a short period of time and should be taken for the full prescribed dosage and course of treatment so as to relieve the symptoms. If there is still no effect after regular medication, it may be due to the patient’s individual factors are not sensitive to this drug, you should consult your doctor for additional drugs or change drugs, other therapeutic drugs include anti-androgen therapy, such as flutamide, as well as 5-alpha reductase inhibitors, such as finasteride, and erithromycin.