Characteristics:Light Yellow Green crystal powder, odorless and not bitter, soluble in water. Pharmaceutical and chemical theory:
Compounded ingredients, take effect within 15 minutes, and the plasma concentration can reach peak after 2-10 hours, which can last 10-12 hours. Functions:curing impotence and premature ejaculation, can be quickly absorbed, soluble in water, without side-effect. Dosage:30-60mg/time.