Hi everyone!My first post online and I have a question to which I cannot Google an answer... How long before my gastric sleeve should I come off duromine (also called Phentermine)? Im booked for surgery on the 29th Sept so I've got 17 daysish to go. I'm on day 5 of optifast presurgery diet. It may be a good time now as am prob in ketosis - but don't want to flake on my last two weeks of teaching this term due to coming off the drug and being in a slump. But then don't want to have rubbish withdrawals compounding surgery recovery... Any experience anyone?