The WHO, and others, council against the donation of medicines that have past their "expiry date", criticising donors for exhibiting double standards. Is this a justifiable criticism or a failure to understand the significance of an "expiry date"? Guidelines for Medicine Donations Revised 2010. World Health Organization 2011."
http://apps.who.int/iris/bitstream/10665/44647/1/9789241501989_eng.pdf