Levitra (Vardenafil) - latest preparation for liquidation of two problems: erectile dysfunction and premature ejaculation. Manufacturer - corporation Eli Lilly. The product generic levitra contains two active substances: duloxetine (serotonin reuptake inhibitor) and sildenafil (5-inhibitor FED). The preparation favorably with others in that its components reinforce each other's action, helping to achieve maximum effect.