antimicrobic vs antimicrobiotic

antimicrobic

adj

  • antimicrobial 

noun

  • Any antimicrobial agent 

antimicrobiotic

adj

  • Synonym of antimicrobial 

  • That counters the development of normal microbiota 

noun

  • Such a drug 

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