That's why drugmaker Vivus is hunting for a shortcut. Tests suggest it may work in as little as 20 minutes but be helpful for as long as 24 hours. Viagra works for about four. Cialis and another Viagra-like pill, Bayer's vardenafil, are on track for possible approval by the U.S. Food and Drug Administration next year. Duration of effectiveness is more significant than speed, Slowinski said.
Patients still have to pay attention to foreplay and getting turned on again.
Don't complain about Viagra taking an hour - you can have a lot of fun in an hour. Tests also suggest that Cialis and vardenafil may have fewer side effects, even though they're chemically similar to Viagra. Like Viagra, however, neither is expected to be safe for patients using nitrate-containing medications, such as nitroglycerine. Side effects are also a central issue with the use of testosterone as a libido medication. In both sexes, levels of this natural hormone are related to levels of sexual desire.