very interesting, knowing nothing about it I went to Wikipedia:
en.wikipedia.org
this bit:
Among patients taking CYP2C9 interacting drugs however, the tecarfarin patients’ TTR was 72.2% (n=92) vs 69.9% (n=87) for warfarin patients (pint=0.16); among patients who had both a CYP2C9 variant allele and taking a CYP2C9 interacting drug, TTR was 76.5% and 69.5% for the tecarfarin (n=24) and warfarin (n=31) groups, respectively (pint=0.24). This study included in 84 (14%) patients with a mechanical heart valve as an indication for anticoagulation therapy. No thrombotic or embolic events were observed in the tecarfarin treated subjects.
did nothing to except confirm how totally shlt the "accepted norm" of management for warfarin is. However this bit:
In contrast to warfarin, tecarfarin is not affected by the
cytochrome P450 inhibiting drug
fluconazole,
[4] indicating a lower potential for interactions with other drugs.
[2]
... proved interesting and if I ever find myself in need of that or the rifampicin treatment then I'll be pushing for that drug as a stop gap.
Thanks