Yes, white honey negates all other potions. I keep a few of these in my inventory cause you can poison yourself using to many potions. If you take swallow, for instance the green line goes up. This STAYS even if the effects of that swallow is gone. Take another swallow (or something else) the green line goes up more. You can poison yourself really easy. If you are seeing red dots you're getting close. White honey will clear out the green line but you will have to take more potions again.