The parent is explicitly endorsing stimulants. Those work well to some extend for treating ADHS, but in general evidence is rather weak for then improving academic achievement, while evidence is rather strong for behaviour changes that makes it easier for teachers to deal with kids, see e.g.
https://pubmed.ncbi.nlm.nih.gov/38871418/.
Pharmacology is not my main area of expertise but I used to do a lot of work in cardiology, and anything that increases the QT interval in the ecg increases the risk of Torsades de Pointes.
Rule of thumb is 5–7% more TdP risk per 10 ms QTc.
Quite a few adhs meds do this moderately, not enough to make an ecg mandratory.
I still believe that making medications the default for adhs is not warranted given the side effects, especially since in many cases it’s not clear if it treats the condition or just makes the lives of education professionals easier.