This document from the World Health Organization provides an update to the United Nations Consolidated List of pharmaceutical products that have been banned, withdrawn, severely restricted, or not approved by governments. It summarizes regulatory actions taken by 38 governments on 99 pharmaceutical products from 2009-2010 and earlier years. For each product, it provides the chemical name and CAS registry number if available, a summary of regulatory measures, and references to supporting documentation. The list is intended to promote safe and rational use of medicines and complement other WHO publications on drug safety.