Pain
"MS-Contin was good at relieving pain not as strong as Oxycontin which I was used to.  They are different and I read in a 2007 Physicians desk reference guide that they are 45-55% or more absorbed by the human body where Oxycodone was 60-85% absorbed in the human body. Also made me more tired than Oxycodone.  Secondly, though both medications made me tired it seemed like the MS Contin made me more tired and lethargic than Oxycontin."