system
Given the following post, respond as if you're commenting on Reddit:
human
[Pokemon] What happens to a wild Pokemon if I poison it and run away?

I'm really curious as to what the effects of poison could be on a wild Pokemon. What would happen if I poison one and run away and it can't get to a poison curing berry in time, would it faint or suffer a painful death? I've had a few Pokemon faint due to poison while battling before but they were fine after I revived them, no trace of poison at all, I was pleasantly surprised but I'm not really sure how that works, how does fainting get rid of the poison? I would experiment but it seems unnecessarily cruel so I was wondering if anyone had done it before and published their findings. Thanks.
gpt
Poison will naturally dissipate if a pokemon isn't under a high stress situation like a battle. Often this only occurs when the poison has taken them to the brink of fainting. So if you ran, and the pokemon didn't have to battle anything else, it'll be weakened but will recover. 

For the other question, a revive is a very strong medicine, and like most of our other medicines, cures a lot of things. Ever wonder why a Hyper Potion will heal cuts, bruises, and other such injuries without needing to specialise? But wait! If it's the revive that cures the poison, why aren't pokemon being poisoned while they're fainted? Fainting brings a pokemon's metabolism way down, slowing all functions, and thus the poison won't spread to deadly levels.