My trainer and Dr. recommended these vitamins, and I am on Accutane. Can I take them?

Hello,I have been on accutane for a while, I'm on ,my 4th month and it will be my last one (40 mg the first two months, and 60 mg the second two months). my trainer recommended the following vitamins: Multivitamins,Vitamin E, Vitamin C, Fish oil, Omega 3,6,9.Where my Dr also recommended me to start taking some vitamins: Vitamin c, Vitamin B12, Vitamin D3 ,Multivitamin < he keeps forgetting that I am on accutane, so I am not sure if he was wrote me this while remembering that i'm taking accutane.