analgesic vs downer

analgesic

noun
  • Any medicine, such as aspirin, that reduces pain, especially without inducing a loss of other sensation. (Contrast anesthetic.) 

adj
  • Acting to relieve pain; being an analgesic. 

  • Unable to feel pain. 

downer

noun
  • A drug that has depressant qualities. 

  • A livestock animal that has collapsed. 

  • A negative drug trip. 

  • A form of industrial action in which workers down tools and refuse to work. 

  • Something or someone disagreeable, dispiriting or depressing; a killjoy. 

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