"i suffer from bladder seizures. my doctor put me on demerol in 1997. i take 100mg twice a day. i have tried other meds, such as percocet, oxycodone but those gave me too many side effects. i&#039;m allergic to codeine. each month i see my doctor and get a new prescription. i just found out my pharmacy ( medicine shop) cannot get it in any size dosage anymore! i tried walgreens, walmart and cvs. no one carries it or is willing to try to get it. what&#039;s going on? my only alternative is 12-16 advil a day, every day."