PERCOCET vs. Oxycodone HCL - PLEASE help!

[benevolentlaughter]

I have been taking Percocet [Oxycodone 5/325] for the past several months regularly due to a severe knee injury. My doctor today prescribed me Oxycodone HCL 5mg tablets.. 100 of them, actually. I am the type of person who gets very nervous when taking a new medication. I saw this forum, and signed up in hopes that I could find some assistance from other people who may have some sort of knowledge of the difference[s] the drugs have compared with each other.

I know that Percocet has tylenol in it, where as the ocycodone HCL does not. However, what does the HCL do for you pain wise is another thing that I'd like to know..

Thanks in advance for all the help.. I look forward to hearing some answers back.