Can you take warfarin with Tylenol 3?

According to a JAMA study done in 1998 Consumption of 325mg 4X a day while on 5mg. Wafarin Can raise your INR from A Normal 2-3 Range to over 6 (Dangerous) in just 5 days. Taking a couple here and there for a couple of days for Headache,colds etc. may raise your levels slightly but you should talk to your doc and maybe check your INR levels before continuing on any futher for any extended periods.