Stability of nitroglycerin tablets in a unit of use pendant-type container.

A stainless steel pendant (Life-Link) designed to carry emergency quantities of nitroglycerin tablets was examined for compliance with FDA packaging restrictions for nitroglycerin. The results of the study indicate that the pendant is equal or superior to screw-capped glass containers presently required for packaging of nitroglycerin tablets. Tablets stored for up to 3 months retain potency and physical integrity. The pendant provides a simple, tight, convenient, and unbreakable container for carrying nitroglycerin tablets on a 24-hour basis.