placebo vs therapeutic

placebo

noun
  • A dummy medicine containing no active ingredients; an inert treatment. 

  • The vespers sung in the office for the dead. 

therapeutic

noun
  • A therapeutic agent 

adj
  • Of, or relating to therapy. 

  • Having a positive effect on the body or mind. 

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