Gastro Acid (Japanese: いえき Gastric Juice) is a non-damaging Poison-type move introduced in Generation IV.
Gastro Acid suppresses the target's Ability while it remains in battle. Gastro Acid does not affect Multitype or Stance Change. Pickup and Honey Gather can still find an item after the battle even if suppressed. Despite being a Poison-type move, Gastro Acid affects Steel-type Pokémon.