Used ivermectin to treat my horses all the time when I had them. All you had to do was to spin the ring on the injector to the approximate horse weight and squirt it in the back of their mouth. It was usually apple flavored, so yum for the horse.
RE: All you had to do was to spin the ring on the injector to the approximate horse weight
So, can you spin the ring to the approximate weight of a human being?
Since I always do what the FDA says, A little bird told me it Makes your tongue tingle
yup.