There are four PDE5 inhibitors - the one you haven't tried yet is Vardenafil (Levitra).
They have different effectiveness in different people, so you need to find the one that works best for you. The problem is that none of them are just PDE5 inhibitors, which is what you really want. They are also PDE1, PDE6, and PDE11 inhibitors to varying degrees, which you don't want. These cause side effects in other parts of the body in some people. It can be a question of finding the one with least side effects if you are prone to them.
Daily low dose 5mg Cialis/Tadalafil is the preferred one in your situation, which is probably why you were started on that one first. This is because it is long acting and a daily low dose gives continuous dosing. A secondary effect of PDE5 inhibitors is improving blood flow in the flaccid penis which helps protect it in the absence of frequent erections. Tadalafil provides this continuously, whereas the others are all too short acting to be of any benefit here. If 5mg daily Tadalafil gave you unacceptable side effects, I would suggest trying 2.5mg daily before giving up on it.
Avanafil (Stendra, Spedra) is the fastest acting - quoted as 15 mins, but like most things, activation time varies between men.
Edited by member 23 Jan 2020 at 01:05
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