I'm not sure it's called that in english....but still, most people will know what I mean right? Well, my kitten Luna broke a bottle of that during the night, and she might have had a few licks...could it be armful?
Oil and vinegar by themselves are fine, some of the other stuff they add to dressing may be harmful, such as onion or garlic, but if it may have only been a few licks, I wouldn't worry.