You can take both together. They are two completely different medications that work in two completely different ways. I take them both together, and I don't have a single pimple on any part of my body.
Accutane hasn't given me any trouble except for dry lips. I know five other people who have taken Accutane, and all of them are clear and don't have any permanent side effects. It's a wonderful medication, and I am so grateful to have it. I had tried every diet in existence, and all that did was stress me out. And it didn't clear my acne whatsoever.