nostrum vs vulnerary

nostrum

noun
  • A medicine or remedy in conventional use which has not been proven to have any desirable medical effects. 

  • An ineffective but favorite remedy for a problem, usually involving political action. 

vulnerary

noun
  • A healing drug or other agent used in healing and treating wounds. 

adj
  • Useful or used for healing wounds; healing, curative. 

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