Abstract: A packaging system is described for a drug that provides protection from contamination, crystallization and/or degradation of the drug during storage of the system prior to its use. The packaging of the drug does not significantly absorb, react with, or otherwise adversely affect the therapeutic effectiveness of the drug or other excipients or components during storage of the system prior to its use. The packaging system is also used for preserving a drug, particularly a drug containing high-purity texaphyrin metal complexes, by providing a product packaging system that prevents, limits or otherwise controls degradation reactions that can result from exposure to oxygen and/or light.