I take Ami, for pain. It helps with sleep which in turn has helped some of my pain. Side effects for me have been dry mouth, sleepiness and finding it hard to get up in the morning after an increase in dose.
The once I had to stop it cold turkey (for an operation under medical directions) I couldn't sleep at all and felt "buzzing" for 3 days. It was not a pleasant experience at all and that was on a low dose of 30mg a night.