South American zombie knockout dust?

I feel like I must have dreamed this up because I can’t find any information about it online. A while back, I swear I heard a whole report (on the radio? on TV? in my head?) about how in some South American country where kidnappings and such are common, criminals were using some sort of “zombie dust” that they’d puff in people’s faces that instantly turned those people into, well, zombies. It seemed like there was a lot of superstition and misinformation/urban legending happening about it.

Does anyone know what I’m talking about?

Maybe this will serve as a starting point for your investigation.

People dispute Wikipedia as a questionable source. But I find it is a good starting point for most of these kinds of questions.

I’ve sometimes heard scopolamine described this way:

And a little bit closer to home: the Master speaks.

So have I. Article here,

and some travel advice from the Canadian Department of Foreign Affairs here. (They really don’t want you to go to Colombia.)