Wrinkles with Accutane. Could this be due to the drug? What can I do about it?

This is most likely from the dryness in your skin, not the drug itself. It doesn't affect muscles or collagen. Remember that Accutane can also make you more sun sensitive. And it's from the sun that we get fine lines and wrinkles (over time). So make sure you are also wearing a good sunscreen every single day. "This answer has been solicited without seeing this patient and
cannot be held as true medical advice, but only opinion. Seek in-person
treatment with a trained medical professional for appropriate care."