salutary vs therapeutic

salutary

adj
  • Promoting good health and physical well-being; wholesome; curative. 

  • Effecting or designed to effect an improvement; remedial: salutary advice. 

therapeutic

adj
  • Having a positive effect on the body or mind. 

  • Of, or relating to therapy. 

noun
  • A therapeutic agent 

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