A recent collaborative study done by researchers from San Francisco, Los Angeles and Denver took a look at cannabis use amongst opiate users, and reached some interesting conclusions that could help the case for statewide and nationwide legalization.
I have been able to reduce dosage of both my 24 hr. opioid medication and my breakthrough pain medication. I have chronic nerve pain from damage caused by spinal surgeries. Trainwreck, either bud or concentrate helps me get through the day, even when I exercise and use my posture correcting brace. Kushes also work well if I can't get Trainwreck, or for night time use.