Reply To: Warfarin or Rivaroxaban?

[Neil W]

They are anticoagulants (reduce the effect of blood clotting). They don’t have any appreciable effect on the blood’s ability to store and transport oxygen. “Blood thinner” is a bit of a misnomer.

The risk they (all of them) pose is the higher chance of serious complications of internal bleeding if you are injured (particularly head injury) at high altitude – if concerned speak to your doctor about that, but it equally affects all anticoagulants.