Percocet and it's generics (acetaminophen/oxycodone) only comes in 2.5/5/7.5/10mg, there is a 30mg
oxycodone immediate release pill (Roxicodone30), but it has no
acetaminophen. Percocet is actually a brand name, cet stands for acetaminophen.
As for side effects, type in the drug name up top, search & read.