Ive noticed a lot of the stronger opiates warn that if you have curvature of the spine that you should avoid use. I have back issues including curvature of the spine and im trying to figure out if these drugs are safe. Ive used morphine, oxycodone, hydrocodone, and codeine without issue but i want to try hydromorphone(dilaudid) and fentanyl because i have them and my back has been in A LOT of pain the last couple days (usually i try to go without meds), im just a little nervous that it could cause complications. anyone else with curvature of the spine use fentanyl or hydromorphone? ... also would liquid morphine for oral usage be any different than morphine ER?