pumpkin and squash seeds are both natural dewormmers.Ditto on what you read here, it is not always accurate, so do your research. Most people here know what they are talking about, but some of them don't!!! lol
I have read that Wazine is good for worms, and have also read that some folks use both the Wazine and the Ivermectin, so who knows!!! One after the other. I have wormed two roosters with Ivermectin, they were fine. It is the safest to use on chickens. If you want to go the natual route try pumpkin seeds.