Morphine / naltrexone
"I have had chronic back pain for 5 years. After failed surgeries and injections, (and after years of oxycodone) my doc put me on EMBEDA. I take it exactly how it is prescribed. After a month I have had so many negative side effects. I get severe headaches, stabbing stomach aches and have been almost zombie like. As far as the pain goes it does treat pain fairly well. However sometimes the EMBEDA can not touch the nerve pain. I personally would prefer my previous medication, because the side effects of EMBEDA just make me feel worse."