I am on coumidin have been for 18yrs, I had 2 DVT's when I was 38, I have my INR checked bi-weekly as of the past
9 months, due to a change in my heath care provider, For some reason He my heath care provider cannot get my INR levels maintain 2-3 therapeutic,Which prior to him this was no issue, other than my previous heath care provider would allow me to monitor my previous INR .I had approach him about this and his response was what you want to be a surgeon to (y) anyway I lost what I was going ask referring back to my change in my health care provider, I am a recreational user of cannabis, for 42y (y) anyway his response was that the THC in cannabis thins the blood FACT -FICTION I cannot find medicineinteractional reports claiming so