Let's face it, no drugs of ANY kind (legal or otherwise) should be flushed down the drain or toilet...they now know that it ends up where it shouldn't...in the
groundwater, in the wildlife, or back in OUR own water. They've caught fish containing hormones (given to humans) & all sorts of harmful drugs & chemicals.
Where I live, there is a drop-off for unwanted/expired meds & periodically the sheriffs office reminds everyone by having a formal "drug take-back day".
Our "road & bridge" department also collects any toxics that don't belong in landfill, such as batteries, pesticides, paints & stains, fluorescent lights...and any that
are usable products are free for anyone to pick-up too...I think it's a good system (especially considering this is not a big town here).