“The same drug is used to prevent heartworm in dogs...”
Are you referring to Ivermectin? Ivermectin is commonly used to rid horses of parasites. We have horses, but we do not use it because diatomaceous earth is better, and is not hard on the horses.
diatomaceous earth? Really? That would be cool. The wife uses the paste on big horsey...
I knew it was good for open air insects. It operates under the same principle (making them hemorrhage?) for internal?
Yes. Ivermectin.
That is interesting about your horses. It would be really nice if a more natural product could be successful with dogs...AND Humans!
Ivermectin is powerful stuff.