Hint: The digestive system would be a little vague (as was my question. ha,ha) I guess I was referring to a specific organ. Can you guess it?
And yes, when I treat people the parasites get passed by approaching the problem through the back door, so to speak. I don't care beans about the parasite knowing that a proper procedure will get rid of them within 3-5 days. And the body does it itself without a parasiticide. (Remember that the presence of parasites are only a symptom of a weakened organism.)