Comparison of the effects of papaverine versus prostaglandin E1 on penile blood flow by color duplex sonography.

To compare the effects to papaverine and prostaglandine E 1 on penile blood flow, the vascular response detected with color duplex ultrasound scanning and the clinical response in 34 impotent men were observed and recorded after they had received an intracorporeal injection of the respective drugs on separate days