I bought Lumbrokinase as an alternative product for Serrapeptase because it's a stronger product. I had a DVT a number of years ago and occasionally I can feel if another one is starting to form behind my right knee. I combined the Lumbrokinase with Nattokinase and they did the trick in a few days. I normally keep going for a few days after I feel its back to normal and then stop.
I took 1 Lumbrokinase in the morning and another going to bed - both on an empty stomach.