I'm 33. My doctor just prescribed Norditropin flex pro pens. 2/15mg 1.5ml pens with 6 refills. Not sure how I should start dosing. A bit of help is appreciated. I'm 6 200 looking to reduce bf and increase lean muscle mass. Currently working out 5x a week. Been dieting and doing cardio in addition to weights. I'm looking to cut up. Can someone help with converting mg to iu's. I know I should prob start with 1 in a day up to 4 iu's a day. Any help is appreciated.