Glass, Beverley Dawn, Haywood, Alison, Llewelyn, Victoria, and Mangan, Martina (2009) Compliance aids and medicine stability: new evidence of quality assurance. Current Drug Safety, 4 (1). pp. 74-78.

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Abstract

Although increasing use of compliance aids is resulting in improved clinical outcomes for patients, the stability of some drugs being repackaged into these aids is being questioned. This is due to the fact that despite their widespread use, there is limited availability of relevant stability data.

This review presents clinical evidence for repackaging into Dose Administration Aids (DAAs), the Australian Pharmaceutical Advisory Committee and other guidelines on general stability issues related to repackaging and a summary of evidence for stability studies conducted in the practice.

For frusemide and prochlorperazine chosen as candidates for study because of their light sensitivity, while discoloration on light exposure rendered them unacceptable for patient use, precautions in repackaging and patient counselling can easily overcome this problem. In the case of sodium valproate however, hygroscopicity results in these tablets being unusable after exposure to accelerated storage conditions.

In the absence of specific data on the stability of drug products repackaged into compliance aids, the guidelines, practical recommendations for repackaging and the management of compliance aids put forward in this article provide the pharmacist with the tools to make an informed decision on this process.

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