The pills you get when you have a tooth pulled are usually 5mg oxycodone/325 acetaminophen (why they add tylenol is beyond me).
The APAP is added to discourage abuse. Most people know that taking several paracetamol is life-threatening, so they will not take multiple percocets at once to "see what it feels like". That it is an effective pain-reliever, itself, is a side benefit: as long as the effects are additive, it reduces the (dependence-forming) opiates needed to relieve a constant level of pain.
You can remove the APAP by crushing the pills, dissolving them in water and then putting the mixture in the freezer for 12 hours. Once it reaches <32f you strain the mixture through a coffee filter. The white sludge in the filter is the APAP and the liquid is pure opiate.
Edit: My bad, the above isn't for removing the APAP, it's for removing the fillers.
I really feel for KF50BS. Drugs, especially opiates, can make you into a totally different person. I know, I'm a recovering addict myself.
Anyway, KF50BS, I really hope you get the help you need. I hope you're going to NA meetings in jail and taking your bipolar medication (my ex had good luck with Geodone for her bipolar). Hopefully this is your rock bottom; it's going to be a hard climb back up, but you'll get there!