Effect mechanism: It is a lasting effect spermary preparation. It has distinct malehormone characteprotein assimilation and stimulating medulla creating blood function. And it can accelerate bloodcell growing and accruesperm. Indication: Adapt to the cases, such as let do winning of makind sex gland fuction and so on. Using range: The seconddary functional impotence, prostatitis because of neurasthenic or spirituality and the others. Precautions for use: The minor would be careful.It could not be used repeatedly in 24 hours.If erection appears time after time or last too long time,to drink a cup of water please. Comment: It is absorted through lymph system.It has no impact for liver function. Usage and Dosage: take one orally 10-15 minutes before sexual intercaurse.