Allen's Guidelines for Compounding Practices Contain Excellent Discussion on Stability, Expiration and Beyond Use-Date for Compounded Medications

Guidelines for Compounding Practices - chapter from The Art, Science, and Technology of Pharmaceutical Compounding, 4th edition (Washington, DC: American Pharmacists Association; 2012), author, Loyd V. Allen Jr. contains an excellent discussion of stability, expiration and beyond use-date.  This article is reprint on the American Pharmacist's Association Website found here