This is not known enough.

I was prescribed Ritalin when i was 6 years old, and was considered one of the short kid my entire childhood (and suffered the consequences).

I decided to stop taking meds when I was 17, and in a few years became the tallest of my friend group.

I'm older now, and occasionally have periods where I take what I consider "better" meds like Vyvanse, but there ain't no way i'm letting my kids take ANYTHING until they are much much older and can decide for themselves.