Buprenorphine
"On pain patch 3 years and lowered from 10 mg to 5 mg. Did this to stop the use of this drug. It works great for about first year then other issues start. Poor sleep, withdrawal after 5th day, won't last 7 days. When I stopped it I had legs and arm spasming to point of not walking, also lack of energy, and tired for about three weeks, depression, lack of interest in anything. Don't start if you can avoid it.."