Will the Perc work better? That depends on the person, honestly. They say coupling Tylenol with Oxy (or
Hydrocodone) increases the effectiveness of the narcotic. Pharmacologically, I'm sure there is a valid reason to couple the two, but the reality is that i probably depends on the person using them.
So your Perc 7.5/325 is 7.5mg of Oxycodone and 325mg of Tylenol. The Tylenol is used for inflammation, fever, and general aches/pains.