Do Adderall And Xanax In The Form Of Drugs Have Adverse Side Effects?

MY son started using Maeng Da , enhanced Thai Ultra its all kratom with adderall and xanax He also had drug addictions to opiIts A year and a half ago AND STOPPED He just started taking these herbes and i feel he is getting addicted again I AM SCARED FOR HIM I WANT TO KNOW IF THERE ARE ANY SIDE EFFECTS . HE IS GETTING DELIVERIES EACH WEEK