Poison 
Introduced in: Generation I
Damage class: Physical
Type Effectiveness
Against
Super effective against:
Not very effective against:
No effect against:
From
Takes double damage from:
Takes half damage from:
Past Type Effectiveness
Through Generation I:
Against
Super effective against:
Not very effective against:
From
Takes double damage from:
Takes half damage from:
Pokémon with this type
Type FAQ
How many Pokémon have the Poison type?
106 Pokémon are listed with this type.
What is Poison super effective against?
Grass, Fairy
What is Poison not very effective against?
Poison, Ground, Rock, Ghost, Steel
What does Poison resist?
Fighting, Poison, Bug, Grass, Fairy
What is Poison weak to?
Ground, Psychic
Which Pokémon are Poison type?
Bulbasaur, Ivysaur, Venusaur, Weedle, Kakuna, Beedrill, Ekans, Arbok, Nidoran F, Nidorina, and others are Poison type.
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