Sorry to tell you this, but this is wrong. You probably mean it when people drink together and someone say a toast, they say ''Na Zdorovie'' or they just say it and drink.
1. It's not even russian, it's polish.
2. In russian you would say ''Za Zdorovie'' (For health). But there is the same thing in russian ''Na Zdorovie'' - which you say as an answer to - if you gave/made for someone food and they say ''spasibo'' (thank you), you say ''Na Zdorovie'' (have also the word ''for health'' in it, but written differently and it means something like ''you are welcome'' in this case).
3. If you drink with people and someone makes a toast, in the most cases it's about wishing love, luck, health etc., health is also used often, but not in the way you wrote it. And toasts are normaly longer than just 2 words, maybe at the end when everything was already said, they make sorter toasts.
It's a very common mistake, they probably switched it up with the polish words, they are very similiar after all.
I don't mean it in a mean way, i just wanted to explain it.^^
Btw. i don't drink :cheers: