Guest Article: Expired Medications–Are They Safe? Are They Effective? Part 2, by Cynthia J. Koelker, MD
In Part I of this series, I explained the definition of pharmaceutical expiration dates and ‘do not use beyond’ dates, and how both are determined. Additionally, I reviewed information from the Shelf Life Extension Program (SLEP) database, which led to a temporary Emergency Use Authorization in 2009, permitting the use of certain Tamiflu products (to treat H1N1 influenza) for up to an additional five years beyond the imprinted expiration date. (See Part I of this series for more information. ) Part II will examine the data regarding use of common antibiotics beyond their expiration dates. The following is excerpted from …