I am a patient in a 4 week pm program in london & w/d from fentanyl. down to 12 mcg matrifin patch and, per doc, cutting it to wean off. is this safe?

Doc supervision: If you are under the care of a physician trained in weaning you off, you should feel comfort that your weaning will likely go quite well.

Only: You, in consultation with your md, can responsibly address this question. If you feel anxious or uncertain about the safety issues surrounding withdrawal, discussing them directly is most appropriate.