Viagra and Levitra final about 4 to 5 hours ( and often as much as 12 hours). However with Cialis, the screen of possibility ranges from 24 to 36 hours, which explains why it is often called “the week-end drug.” Another small difference is that while Viagra’s action could be delayed or reduced whenever taken with meals (especially high-fat meals), that is far from the truth with Levitra or Cialis.
Success prices. Because Viagra happens to be available the longest, there’s more research available with this medication. Pooled information involving studies of 6,659 guys demonstrate that Viagra aided 83percent of males have sex at least one time. Having said that, Viagra is certainly not a panacea. A 2001 research of their long-term effectiveness, into the Journal of Urology, reported a notably reduced general rate of success (69%). The success prices for Cialis and Levitra (59% and 69%, correspondingly) act like those for Viagra.
Viagra has shown good for many guys with impotence problems caused by spinal-cord accidents. Within one research, 83% of these males who took Viagra had enhanced erections. But also for guys with diabetic issues or advanced cardiovascular disease, the medication assists just about 50 % of the full time. The reaction is also reduced — about 30per cent — for guys who’ve had prostatectomy that is radical.