In general I complete any course of medication I am prescribed. However sometimes one gets a few spares if you miss one or your medication gets changed. When my statin was changed I took nearly six weeks supply back to the chemist but would feel silly about taking back half a dozen statins (easy things to forget) or a couple of lisinopril. The reason they get left over is that the foil packs have the day of the week printed on and if you don?t take them on the day printed you can get mixed up. A double dose of lisinopril gave me unpleasant temporary hypotension. What do you do with small amounts of left over meds? I feel tempted to either flush them down the toilet or put them in the general rubbish but my environmental lobe says ?no?!