I was just changed from Percocet 10/325 MG to Oxycodone 15 MG by my doctor because I have been taking them for some time and they no longer were taking away all my pain. I looked up the 15 MG Oxycodone pill that my pharmacist gave me which had a M in a square on one side and was scored with a 15 on the other side and was white in color and round. It did not bring up 15 Mg Oxycodone as being one of the possible drugs. I then looked it up under Oxycodone Hydrochloride and found one exactly like it except it was Green. It was made by Mallinkrodt and had the M in a square with a 15 on the other side which was scored. I don't know if I should contact my pharmacist about this or not? Could you please help me decide?