antivenom vs potion

antivenom

noun
  • A medicine that counteracts venom, an antidote to biological poisons from venomous animals such as snakes and spiders. 

potion

noun
  • A small portion or dose of a liquid which is medicinal, poisonous, or magical. 

How often have the words antivenom and potion occurred in a corpus of books? (source: Google Ngram Viewer )