Methadone
"I was tried on numerous medications for my chronic pain. When I took my first dose of methadone, I was "nearly" pain free for half the day and the dose doesn't need to be increased as often as it did on other drugs such as Oxycontin. For break through pain I only need an anti-inflammatory or another mild narcotic such as Percocet, and only rarely.

I think this is a great drug for pain!"