My child is on a few prescription medications. Do I need to stop those before starting?
Regarding all prescription medications or prescription supplements (e.g., iron, Vitamin D3, injectable Vitamin B12, or leucovorin), parents should never under any circumstance reduce or stop those without first consulting their child’s managing physician. Generally prescribed medications do not interfere with the protocol, and after several months you may be able to taper off the medications under supervision.