tylenol and the ring

[its-my-friday.livejournal.com]

I was reading through the posts about the ring and noticed the two that discussed tylenol and the way that it interacts with the ring.  I recently had to take a lot of tylenol for my shoulder.  While I have not had sex yet, I probably will around Monday.  I took the tylenol starting around Saturday and then until last Monday.  Does that mean that this entire ring is compromised?  Or was it just during the time that I was on the tylenol?  We will be using contraceptive film as backup (we have used this before and its our preferred backup method), but I want to take all precautions.  If it makes a difference, I will be taking the ring out on Jan 14 for my off week.  Any help is appreciated.

*EDIT* - Sorry, I should have originally posted the links to the entries I was referring to.  They are here and here.  They refer to acetamenophen, which is in the pain reliever that I am using.