http://www.fda.gov/MedicalDevices/Safety/AlertsandNotices/ucm134874.htm

Essentially, no, with a few exceptions. Notably NITROGLYCERIN, INSULIN, AND ANYTHING THAT NEEDS TO BE REFRIGERATED.

Other 'dry' meds (look like powder compressed into a tablet ie. aspirin, or powder/granules contained in a capsule), if kept in a cool dry place and haven't started to visibly break down, should be good for at least 10 years.

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