Grapefruit Juice (GFJ)- I had toyed with the thought of working with grapefruit juice for a long time but have read through combined experiences. Recently I read that it does not inhibit CYP2D6 but rahter 3A4 that's accountable for conversion of codeine into norcodeine. In concept by inhibiting 3A4 you allow additional codeine for 2D6 to grow to be… Read More