Be sure to look at the expiration date on the box. I got one dated into 2022. There were expired boxes on the shelf. The manager took them off the shelf when I pointed them out. Got mine at Tractor Supply last fall. There are several types of horse paste wormer meds. Make sure you get only ivermectin, it says 1.87% ivermectin, if I recall correctly. Other wormer meds are used in rotation on horses. I used them all for many years for my horses.
I have that. I haven't even opened it so wasn't sure how to measure it out. I'll get another one just because.