I am not sure a local doctor is going to want to give you a prescription for regulated medications prescribed by your psychiatrist without being able to confer with your primary physician. Not you cannot buy a lot of drugs over the counter like you could 5 or 10 years ago. I know you can get tramadol as I had to take that for a while - but it needed a prescription. Can't your doctor give you enough for your additional days that you will be away - definitely doesn't sound prudent to ration your drugs. And of course we are not FDA regulated - but we do have our own regulatory boards.