I doubt it. More likely it would make it easier for her to get the vivid writing onto paper without bouncing.

Most of the relevant meds are short-acting-- easy to try, not much downside to a short-term tryout. (Though you have to check family history, etc, first of course!) We do prefer an expert provider over a general practitioner-- choice of medication is important.

AFAIK, not all ADHD people have impaired WM, btw.