Your doctor is there for YOU but it is your body and your decisions. When I took Rebif, there were 6 month tests to see how my liver was functioning.

Naltrexone may have toxic factors but probably no less than the more expensive drugs.

I say that you politely let your doctor know he is writing the script. It is your body and your decisions. Offer to sign a waiver so he has no fear of being sued if he has that concern.

For me, no is not an option.