For those who haven’t enjoyed sticky, green hands: “Recommended as an aid in treating horses and ponies with thrush due to organisms susceptible to copper naphthenate.” Zoetis US: KOPERTOX®
For the rest of us, did you know “Shake well before use”? News to me. ibid.
Alphabet 2015
J is for Jump
I is for Irons
H is for Hay
G is for Green Grass
F is for Feed
E is for Eventing
D is for Dressage
C is for Caesar
B is for Boot
A Is For Appaloosa
Virtual Brush Box 
I never knew Koppertox was supposed to be shaken before use, either.
If you were to shake it, I think it would just get all over you. Not worth it.
make sure the lid is closed tightly first, LOL
Oh my gosh! I forgot all about Koppertox. Awesome!