Grapefruit Juice (GFJ)- I'd toyed with the idea of working with grapefruit juice for a long time but have examine combined experiences. Not long ago I browse that it would not inhibit CYP2D6 but rahter 3A4 which is chargeable for conversion of codeine into norcodeine. In theory by inhibiting 3A4 you allow extra codeine for 2D6 to become morphine. F… Read More