I Am Questioning About The Ingredients To Loratabs (which My

I am questioning about the ingredients to Loratabs (which my sister is currently taking). If I understand it right it is a combo of hydrocodone & tylenol (acentophentomine.....sorry sp?)..but isnt' hydrocodone a combo of oxycodone and tylenol (acento...) ---so I am surmising that loratab is a pill/medication that contains extreme amounts of acentophentomine with a small dose of oxycodone? ---- Am I correct? And if yes, does the extra amounts of (acento...) pose a harm to the liver?