drugstore vs pharmacopoeia

drugstore

noun
  • Synonym of pharmacy, especially a small standalone general store which includes a pharmacy. 

pharmacopoeia

noun
  • An official book describing medicines or other pharmacological substances, especially their use, preparation, and regulation. 

  • A collection of drugs. 

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