i need advice... please help. i have been taking oxycottin 30m tablets twice a day for about 3 months now but hat is for breakthru pain on top of those im perscribed fentanyl 100mcg patches that i wear daily. i was wondring if i continue to take these medications for a long period of time what kind of effects could it have on my body? the reason that i am on this is for the stage 3 astrocytoma brain tumor that i just had removed and the hedaches that i get with them. they are chronic hedaches. any advice on diffrent treatments for pain, besides pain therapy... doesn't work for me or pain tollerance anyways. could someone please get back to me on this?