Ya...I hear you...and you'll hear from other men here too. I was given 5 mg dosage as well. I kept reading here about all of the men taking 20 mg doses. I was confused. My urologist said that the 5 mg "to start" is to aid in circulatory recovery, and to prevent some scarring...a positive side effect of the drug from its normal use in treating ED. The 5 mg dose is not meant to turn you back into a bull or a stallion. I was on the 5 mg 'daily" dose for 5 months, and then I was switched to the 20 mg dose "every other day." I still have ED issues, absolutely a "limp biscuit", wet noodle down there. I have been told by my urologist, and I have read here and elsewhere, that for a man in his 60's and 70's, full sexual, erectile function is not likely restored for about a year post-op. You'll be battling other frustrations between "Day #1 Post-op to 6-7 months post-op, so it will suddenly seem like it isn't too far away for that full one-year post-op, and the hopeful return of sexual function. I am "counting on it." As a 70 year old man, I had full function on command prior to surgery, so I am hoping and planning on a return to that by next April when I hit my one-year post-op anniversary. Good luck to you.