Grapefruit Juice (GFJ)- I'd toyed with the concept of employing grapefruit juice for a long time but have browse blended experiences. A short while ago I browse that it does not inhibit CYP2D6 but rahter 3A4 that is accountable for conversion of codeine into norcodeine. In theory by inhibiting 3A4 you allow extra codeine for 2D6 to change into morp