I have a high tolerance to opiates (having been on Fentanyl, Oramorph, buprenorphine) and now on 20mg daily Oxycodone slow release, 6x 5mg OxyNorm Fast acting and 10mg Diazepam... my question is - how to get high? I'm used to these drugs and can't keep upping them (I'm a chronic pain sufferer). I am slight, 8.5 stone, 5ft6 inches and a girl. I want to enjoy these sometimes - as my life is SHIT since getting ill with pain. What's the best thing to do? I drink grapefruit juice, quinine sulfate, eat avacados.... what else? Do I have to take more - and if so, for a party night for instance, what would be a safe amount of Oxy for me to take?? I have a HIGH tolerance...!!!!