I am confused because I have done a lot of research on medications to treat roundworm. Many Vets state that Wazine (Piperazine) is NOT safe for Laying hens that produce eggs for human consumption. Then... I see tons of people and "experts" recommending using said product for treatment toward roundworm. Why are some saying it's not safe while others say to use it? Is there a safe way to treat chickens with roundworm? Thank you in advance!