Through this 2 year ordeal of recovery from ED post RALP I have found this on meds for me.
After trying all kinds of combos the 5 mg Cialis over a 10 day period worked the best by far. For me it started really kicking in after 10 days. In the beginning I wanted instant results so wham the 100 mg of Viagra -Ok headaches, dizzy, ringing in ears and bad ED results. Then the high doses of Cialis 20mg-- double to 40mg lousy results---
Then finally some patience 5mg a day for 10 days -- then UT OH things started happening-- now I take the 5mg everyday and find I get spontaneous action -- that to me is amazing.
So if your struggling try the 5mg for at least 10 to 20 days versus the trying the big bang of 100mg and the 20 mg. You may find that the 5mg over time will work much better then the higher doses with less side effects. Although it may seem a contradiction, less seems to be more. It just takes a little patience to let the Cialis 5mg kick in but give it a shot and see if it doesn't work for you as well.