Thanks SpeckledHills, that was the info I was referring to that I couldnt quickly come up with (it was late last night too lol). Remember we talked about my tapeworm issue earlier this year? I found out Valbazen takes care of them as well as the Quest Plus and Zimectrin Gold of which I have all three lol. I no longer have a tapeworm problem! With the ivermectin pour on, I said 2 drops...that was using a regular eyedropper (bigger drops.) The 4 drops that SpeckledHills refers to is using a syringe w/ 25 ga needle to apply (smaller drops,) to the skin.