I have to call down MS students ALL THE TIME. Some get it and we can get with a schedule. But I have enlisted teacher help. Our students can't have cell phones, so one teacher set an alarm on her phone for me so she would reminder to let a student come down and see me. The student got so into the routine, he was asking to see me about 1 minute before the alarm went off. And now he is like clockwork!
Also, most MS student don't want me delivering meds - embarrassment city for some; however I will do it if you forget more than 2 days in a row and especially if the student doesn't visit me. That usually gets them to remember.
HS kids - they need to be independent. I'll chase a few times, but then I'll report home that I'm chasing and see if parent wants me to chase, or like I hope they are board with, me not to chase to build personal responsibility. A lot of parents actually support me in my goal to help make their child more responsible for their own health by the time they graduate. (A few, not so much. Those kids I worry about when it comes to college. But I can't always work miracles, just try to