The main difference between Cialis and Viagra is how long ... can interact with other medications. Cialis (tadalafil) is a ...

Although Cialis and Viagra both make it easier to get and maintain pleasure, there are a few key differences between these two ... type 5 inhibitors such as tadalafil (the active ingredient ...

Tadalafil is more affordable. It’s usually between $1 and $20 per pill. Cialis and tadalafil use the same active ingredient. The difference in cost is largely due to the brand name’s market ...