Grandpa just passed away, and he left me his "collection"

So his german doctor prescribed him 45mg of oxycodone per day to manage his pain from cancer and after a few years he just stopped taking it, never informed his doctor, and accumulated hundreds of pills. I showed up to clean out his apartment after he passed and there they were. <br><br>1) Will these pills degrade over time?<br><br>2) Can my drug sniffing german shepherds detect them?<br><br>3) What dosage should I take? He was an elderly man with cancer so I assume that would change the dosage.