Im not sure about blood thinning effects, etc. But most AAS can increase clotting time. But I wouldnt be overly concerned about that unless you had to have surgery. In that case I'd recommend you to stay away from AAS until after you've recovered.
Overall var is very mild. You could run it for a 1st cycle. Wouldnt be my 1st choice of things, but a lot depends on your goals. Dont expect to get huge off a var cycle though.