Deprescribing is a term used by pharmacists and the larger pharmaceutical community and their associations to describe the process of tapering off, withdrawing or stopping medications for a variety of purposes. For example, see this article published by Ontario Pharmacists Association.

http://www.opatoday.com/index.php/component/content/article/1750-impact-of-pharmacy-services-in-ontario-to-be-studied-with-57-million-research-grant.html