The key difference between Aozdyl and Epakitin is that Azodyl comes in the form of pills while Epakitin is in the powdered form. Both Azodyl and Epakitin are used to support vital kidney functions. Azodyl mostly focuses on preventing toxin buildup. That way, the kidneys do not need to deal with an excess amount of toxins in the blood. Epakitin on the other hand acts as a phosphate binder that can control the amount of phosphorus released into the intestines. In comparison to Azodyl, Epakitin is much easier to administer. That is mostly due to the fact that it is in powdered form, which makes it easier for you to mix it in the food of your pets.