i get mine here ...
vetuk.co.uk
they do xeno 450 or 0.8% ivermectin drops ...
ive had both
Ditto
I get the 0.8% drops
both work the same realy ... but the drops have to be used within a certain time or they lose strength...
drops work out cheaper if you have lots of buns to do
a bottle of drops does more than 2 packs of xeno 450 .