We get asked quite frequently if it is OK to mix Vitalzym or Vitalzym XE Liquid Gels with Vitalzym Cardio. There is no problem with doing this. We recommend simply adding 1 capsule of the Vitalzym Cardio to each of your doses of the regular. The added nattokinase and CoQ10 will have a great impact on cleansing the blood. Remember that if you are taking any kind of anticoagulant (blood thinning) drugs, its important to talk with your healthcare provider first.