I have taken this horse de-wormer, fairly recently. You will see it is calibrated to dispense amounts marked by weight, in 250 pound increments.
Adjust your dosage accordingly.
Take with some fatty-type food-butter, ice-cream, cheese, etc.
I took my dose, every 3 days, three separate times. I have more left over, for next time. I tool other another horse de-wormer, called Exodus, after that, 2 weeks later
I expelled a ton of stuff with the Exodus, as it is a different preparation, and designed to kill roundworms, pinworms and stronglyes in horses, and with my owning horses for 45 years, I am sure I had alot of their worms in me, from close contact.
We cannot expect to expell all the crud we have living inside us in one treatment! Different parasites have different life cycles.
Just like our dogs, cats and horses, we will become reinfected, and will need de-worming, too, on a regular basis as long as we are alive.
Keeping the worm population in us down, will require constant vigilance.