CONCLUSION — There are virtually no reports of toxicity from degradation products of
outdated drugs. How much of their potency they retain varies with the drug and the storage
conditions, especially humidity, but many drugs stored under reasonable conditions retain
90% of their potency for at least 5 years after the expiration date on the label, and sometimes
Edited by SplashN96, 08 January 2009 - 01:54 PM.