a few thoughts
I think that a good way to increase the effectivness of either Viagra or Cialis, or for that matter almost any oral, is to take your pill with some Grapefruit juice. I also like to crunch mine once or twice to break up the tab a little.
In regards to contraindictions, I know that users of Viagra are warned against combining with Amyl Nitrate (ie Poppers), so as a precaution I might avoid those types of drugs when using Cialis just to be safe.
I think that a good way to increase the effectivness of either Viagra or Cialis, or for that matter almost any oral, is to take your pill with some Grapefruit juice. I also like to crunch mine once or twice to break up the tab a little.
In regards to contraindictions, I know that users of Viagra are warned against combining with Amyl Nitrate (ie Poppers), so as a precaution I might avoid those types of drugs when using Cialis just to be safe.