My Grandson Will Be 7 In Dec..his Mother Has Him

my grandson will be 7 in dec..his mother has him on vyanse 20 mg cap and intuniv 1mg which she gives at night...she said it was to help with rebound...but I don't think so (why would you give it at 6pm) he also wets the bed almost every night...is this normal for a child this young to have so much meds.