Poison-type Pokémon

Pure Poison-types

Strong against Bug, Fighting, Grass and Poison attacks; weak against Ground and Psychic attacks

Weak against Bug attacks in Red, Yellow and Blue Versions

Nidoran

Nidoran

Bug/Poison-types

Strong against Bug, Fighting, Grass and Poison attacks; weak against Fire, Flying, Psychic and Rock attacks

Not strong against Poison attacks in Red, Yellow and Blue Versions

Poison/Flying-types

Immune to Ground attacks; strong against Bug, Fighting, Grass and Poison attacks; weak against Electric, Ice, Psychic and Rock attacks

Ghost/Poison-types

Immune to Fighting and Normal attacks; strong against Bug, Grass and Poison attacks; weak against Dark, Ghost, Ground and Psychic attacks

Not strong against Bug attacks in Red, Yellow and Blue Versions

Grass/Poison-types

Strong against Electric, Fighting, Grass and Water attacks; weak against Fire, Flying, Ice and Psychic attacks

Also weak against Bug attacks in Red, Yellow and Blue Versions

Ground/Poison-types

Immune to Electric attacks; strong against Bug, Fighting, Poison and Rock attacks; weak against Ground, Ice, Psychic and Water attacks

Weak against Bug attacks in Red, Yellow and Blue Versions

Water/Poison-types

Strong against Bug, Fighting, Fire, Ice, Poison, Steel and Water attacks; weak against Electric, Ground and Psychic attacks