In what generations do Pokemon get damaged when walking while they're poisoned?

Question

What gens does Walking Poison happen so I know what to do when it happens...

Answer 1

Pokémon taking Poison damage while walking was a feature until Gen V. In Gen IV, a Pokémon will not faint from Poison damage outside of combat — it will be "cured" of the effect at 1 HP.

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Comments

Thanks, this has had me wondering for a while