Tramadol and Warfarin reaction?

[Offcut]

I have been moved from Co-Codamol 30 to Tramadol for pain but a report shows it increases INR and it is important to monitor INR more closely.

It must be me but for a strange reason I have gone from 2.4, 3.8, 2.4 Just started Tramadol and my last test this week I am down to 1.8? My Range is 2.5-3.5 3.0 ideal. Found this report that confirms increase INR with Tramadol. Any ideas as to why I would drop so much?

medsafe.govt.nz/profs/PUart...

Be Well