512 is:
Hydrocodone 5 mg and
Acetaminophen (APAP) 325 mg
Generic
Percocet
After you stop using this medicine, your body may need time to adjust. The length of time this takes depends on which of these medicines you were taking, the amount of medicine you were using, and how long you used it. During this time check with your doctor if you notice any of the following side effects:
Body aches; diarrhea; fast heartbeat; fever, runny nose, or sneezing; gooseflesh; increased sweating; increased yawning; loss of appetite; nausea or vomiting; nervousness, restlessness, or irritability; shivering or trembling; stomach cramps; trouble in sleeping; weakness
I might not always be right, but I'm never wrong.