Definition of "polypharmacy"

Critics denounced physicians as meddlesome, capriciously practising an often dangerous polypharmacy – a blunderbuss approach.

1997, Roy Porter, The Greatest Benefit to Mankind, Folio Society, published 2016, page 226

Faced with wheezing, blue-faced patients, they felt they had to do something, and the approach they adopted was polypragmatism, or polypharmacy: they threw the medicine cabinet at the problem.

2017, Laura Spinney, Pale Rider: The Spanish Flu of 1918 and How it Changed the World