They use Ivermectin regularly and do not have social media at their finger-tips to tell them it is horse paste.
Ivm comes in several varieties including liquid and "horse paste." Horse paste is a medicine formulated for farm animals. It contains Ivm and flavorings to make it palatable to animals. Horse paste can also be taken by humans. I've been taking horse paste for 18 months with no adverse reactions. Whey, ninny. Well, almost nothing adverse.
The heartworm pill given to dogs once a month by their owners is Ivm.