Percocet used for pain relief is a narcotic medication and prescriptions can prevent people from getting high on Percocet without medical reason.In fact, the Percocet high feeling can get you into lots of problems.
I think the formula of the perfume itself decides how fast it will spoil. My perfumes from Britney Spears Curious and Salvatore Ferragamo went bad within a year and a half. The Britney Spears one developed some precipitation and started smelling like alcohol, while the Salvatore Ferragamo just smelled plain weird.
Good for me I don't wear any. I prefer to be natural and aside from getting toxic chemicals from those perfumes this is now the fact that most of them had came from these poor animals. Why not leave those animals alone. Humans will not die because of not smelling fresh or good to others.