deep vein thrombosis, prophylaxis
"I had been taking warfarin for many years  for Antiphospholipid syndrome and been pestering my Dr. if I could switch to Xarelto instead, as I'd had enough of the constant INR tests. Finally, my haematologist agreed. (The drug is not normally prescribed for my condition.) I was given 20mg to be taken once daily with breakfast. The first two weeks passed with no problems, but on the third week, I had a really bad dizzy spell and almost fainted. Fortunately, I managed to sit down before I did faint. I spoke to my haematologist and she suggested that I take it just before going to bed instead of the morning. So far it's worked. With my condition, migraines are a symptom and they have got slightly worse since taking Xarelto. But I still much prefer it to warfarin & INR tests!"