Exercise in relation to when you take your meds

Hi, I was diagnosed yesterday and prescribed adderall. I was trying take it all in, thoughts kind of going everywhere, that I forgot to ask about exercise. I’ve been an avid runner in the past and took about 6 months off due to injury but want to start again. Should I take my meds after my run in the morning ? Should I take it easy in the beginning ? Does this matter ? Trial and error ? Thanks in advance .