I would like to have some Ivermectin sitting around for preventative measures but the only place I find it online is on Amazon (in the form of a paste and advertised for animals) and sketchy generic “buy drugs online” sites.
Also, how long does it take before it expires? A year, 5?
So simple. Go to a feed store like where they sell baled hay and bagged livestock feed. On the supplements shelf you will find "wormers". You will see paste ivermectin in weight-dose tubes. You may also see wormer granule packets, for animals you can't get to accept paste wormer. Try to get the apple flavored Ivermectin. DON'T get a wormer that is a blend of ingredients. I get the Durvet brand paste for my horses, it is inexpensive.