Anyone heard of or used Tronozymol yeast?

[hairytoes]

I've got this Tronozymol yeast nutrient & energiser salts, from wine making stuff off of ebay - it's vacum packed & unopened.
Has anyone ever heard of this or even used it, I'm going to try it out on some Turbo Cider tommorrow, do you think it will work.
Also could it be used for making beer? as it only states wine on the box. <_<
If not I'll always just use it on wine as there's going to be plenty brambles ripe where i walk the dog.

Thanks for any pointers.

[tribs]

I use the very same stuff in my yeast starters.

I add about 1/4 teaspoon to the boiled DME after its removed from the heat. It can be used in the main wort but not both or you may end up with too much zinc.