When tadalafil is used for the treatment of erectile dysfunction combined with the signs and symptoms of BPH, it is possible to use it in small doses for a long period of time, and for the rest of the treatment it is not recommended for long periods of time. Tadalafil is a phosphodiesterase-5 inhibitor, which is commonly used in the treatment of erectile dysfunction in men to promote penile blood flow, improve penile erection and increase hardness. When used to improve sexual function, it is not recommended to be taken for a long period of time, and can usually be taken half an hour before sexual intercourse. Tadalafil is also effective in treating the signs and symptoms of erectile dysfunction combined with benign prostatic hyperplasia, so in this case, tadalafil can be applied in small doses for a long period of time, but you should pay attention to the changes in blood pressure and other changes after the use of the drug, to avoid hypotensive reactions. The use of tadalafil may cause headache, back pain, dyspepsia and other adverse reactions, which need to be noted. It should also be noted before use that tadalafil is contraindicated in people who are allergic to any of the ingredients in the product, patients who are taking any form of nitrates, guanylate cyclase stimulators, women, children and other people. The drug is a prescription drug and should be applied in strict compliance with the doctor’s instructions.