My standard suggestion is google: talk doctor pain and let him choose which to try based on your need & his knowledge/experience. If you have any concerns/questions about his choice, ask them then & there. Give whatever he prescribes a fair/reasonable chance/trial (w/ adjustment period). If it works, cool! If it doesn't, or there's any problem, don't hesitate to call immediately, report it, and ask for a change.

You probably know all this stuff very well, but for the lurkers... The thing is (seems I've been posting a lot about doctors lately, so this stuff is all running rampant through my head... ) unless we specifically tell them (call, complain, ask, etc) doctors assume everything is ok and working fine, whether it's pain, medications, or whatever. Once we leave the office, other than notes & billing, they're on to the next patient and their problems; they don't think much about us until the next appointment.

Doc