Hi MTG
There's some very common experiences with the patch , like the third day being alot less effective. I have used the patch before and it worked fine for me but I won't bother with the details as everyone has given you a pretty clear picture of what it does. I just wanted to mention that I used to use percocet as well but asked my doctor to switch it to straight oxycodone without the added tylenol as from what I've read, having all that tylenol isn't good for your liver or kidneys. I presently take 20mg tabs of oxycodone and as far as I know there made in 5mg and 10mg without anything added. Just thought I'd mention it because the last thing you need is more problems. Take care and best of luck.
.Stingray