You do not need large amounts of grapefruit juice or grapefruit to slow down your body’s ability to metabolize prohormones, and other medication and supplements. Even a glass of regular grapefruit juice could prevent your body from absorbing medications or supplements by almost 47 percent. Grapefruit juice’s effects on the CYP34A enzyme slowly wears off. Even 24 hours post ingestion, the juice could still prevent prohormone metabolism in excess of 15 percent. Therefore, get in touch with your doctor before administering prohormone supplements or merging grapefruit or its juice with any other supplement or medication.
Help I have a friend who is a gym goer Im not sure of his quantity or how long he has been taking steroids, but stopped recently because he had really bad neck pain. No dr or scan, ultrasound etc showed anything. Put on huge pain killer amounts didnt help alot but felt after about six weeks some relief. Until today when he thinks a prior knee issue has flared up. If this a result of steroid abuse how long before it heals? Im pretty sure he wont touch them again. He can handle all over aches and pains but these last two injuries have had him off work.