My mum's been on it for a while. She had a heart scare a few years back.
Yesterday she had her blood checked and the warfarin was high, over 3.5 I think? Nurse said it could be because she'd had a painkiller the night before?
I did a google at mum's request (although told her not to take it as gospel) it said you shouldn't take ibuprofen with warfarin. Mum had taken it. I told her and she said 'but I've taken them before'
I told her to see GP or specialist as I'm not medic.