They don't list the ingredients on the label but it appears to be rubbing alcohol, salt, and blue coloring.
Isopropyl alcohol causes serious belching and can kill in high doses.
That said, winos drink it all the time.
They hit the E.R. with serious, stinky belching, but it rarely kills them.
The LD-50 is a tad worse than ethanol and the symptoms are similar.

As for your neighbor.
Most cat poisonings are from propylene glycol, (Anti-freeze), that gets left out in open containers.
It has a sweet taste, cats seem to be attracted to it.
What I'm saying is;
"Never attribute to malice that which can be attributed to stupidity."

Best wishes
Weeze
Weezard Reviewed by Weezard on . NEED HELP, DONT KNOW WHERE TO POST!! I THINK MY CAT GOT POISONED BY... Hello- I am not sure where to post this question. Please advise if it needs to be posted elsewhere... I accidentally left a little container of Formula420 on a high countertop. My damn cat got up there and I think he got into it because he is wheezy, coughing and not looking well. I AM taking him to the vet TODAY. I thought the stuff was non toxic, and I can see how Morrissey (my cat) would like it because of the sweet smell. Does anyone know anything about this or HOW toxic the stuff is? Rating: 5