I have a patient who is under the age of 40 and is on 16 medicines. Yes, 16. And some she takes more than once a day. Who really can keep track of 16 medicines? Of course, the reason why she takes so many medicines was completely preventable if she took the 2 or 3 she had to take years ago. And, of course, she doesn't take all of her medicines, which brings her under my care.