Btw no mix up...it is mylan...I found only 2 people who have taken this brand ms contin and both said had bad reaction as well...I have researched everywhere and found nothing. .the pill itself is so huge. My goodness it is so big I cant imagine the amount of fillers they used to make it so big. I have literally tried every brand of msc there is and they are all close to the same size....this one is 20 times bigger no freaking joke...I swear on my life the worst brand I would take before this one. Mylan patch of fentanyl is a good brand but for this I think they are just in it for the money. I waited and tried one again today... as I just finally got my new script and didn't make it to pharmacy in time to fill today...tried one again because I thought well what if I was wrong maybe it was a fluke...it was not.. I planned ahaid for nausea and took phinnergin than suppositorie than waited an hr and took the mylan ms contin I didn't throw up but hella sick to my stomach still and oh god no help with pain total headache, felt weak and like I was ill... So I am having the pharmacy now put in my chart im actually allergic to something in them..I Never want to go through something like that again. Done being a Guinea pig this I know...fair warning to antony switching the 2 other people I found both experianced similar symptoms and said had there doctors switch them instantly..odd enough one was on 15mg and the other was on 30mg so I say buyer beware this is a brand that is noticeably different right from the start and for now aside from me I cant find much on it...I say take your script to a Pharmacy that carries Rhodes or sandoz...prob I spelled those wrong but ya..lol I would love to find out more on this stuff.