IMHO - (and as the mother of a handicapped child, God rest her soul), I would not just start calling agencies without proper / adequate proof of what you are thinking, for it could cause more problems for this dear young lady and her family if you are WRONG.... what I would do is to be BRAVE enough to ask them straight out (face to face) about the pills you saw on the bathroom floor (and) then take it from there.

Good Luck...............

LoVe,
Rhapsody -