Every once in awhile I put up a winner.
I've just found that people are so different when it comes to reacting to meds.
Look at me - for me, IM demerol works better than IM morphine, even though the demerol is weaker. Yet, when it comes to CP meds, I use oral morphine and it is better for me that way. I've tried oral demerol but it's much, much weaker when taken orally. It takes about 300mg to get the same pain killing effect of a 75-100mg IM dose. And, as aussie pointed out, its metabolites are toxic if taken any longer than a few days.