Here is a web site that identifies a drug, if this doesn't help you, go talk to your pharm. person or at least call him/her and ask questions as to what the IP on the pill means.
http://www.drugs.com/imprints.php?ac...odone&start=10
Did you explain that you can't take IP?
http://www.drugs.com/imprints/ip-120-17007.html is this the pill you got? it is the 'same thing' as the hydrocodone apap with a M and three numbers accourding to this drug identifiyer. What are the 3 numbers on the pill you usually get?
If everything checks out that the medicine they gave you at a different location, know that you have done all you can and everyone else says it is safe,
"Know and believe that it is true" It is your mind going all anxious on you is my guess. But it sure is a good idea to ask again - maybe from your usual pharmasist.
Good luck. You are in my thoughts and prayers.