laxative vs vomiting

laxative

noun
  • Any substance, such as a food or in the form of a medicine which has a laxative effect. 

adj
  • Having the effect of moving the bowels, or aiding digestion and preventing constipation. 

vomiting

noun
  • The act of one who vomits, or the matter that is vomited. 

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