CODEINE NO FURTHER A MYSTERY

Grapefruit Juice (GFJ)- I had toyed with the concept of working with grapefruit juice for a very long time but have read blended stories. A short while ago I read through that it isn't going to inhibit CYP2D6 but rahter 3A4 and that is answerable for conversion of codeine into norcodeine. In idea by inhibiting 3A4 you leave additional codeine for 2