Prescription assessment quality system

These lists tell us something about the nature of quality records, especially by what is not included. Absent from the lists are policies, procedures, instructions, plans, specifications, and any other prescriptive documents. The records all have one thing in common they describe the results of some activity - the results of inspections, tests, reviews, audits, assessments, calculations, etc. However, these lists are dominated by records relating to product quality rather than to the operations of the quality system. In addition to audit records, the following records may need to be maintained to demonstrate the effectiveness of the quality system ... 

So from a quality system viewpoint the PIC/S GPP can only be used for quality of the preparation process, not for prescription assessment or design of formulation. 

This Standard has no clear relation to EU GMP but gives attention to three processes of pharmacy preparation prescription assessment, design of formulation and preparation process. It might be useful for structuring a quality system for pharmacy preparation (see Sect. 35.7.6). 

In the previous section we described several internal methods of quality assessment that provide quantitative estimates of the systematic and random errors present in an analytical system. Now we turn our attention to how this numerical information is incorporated into the written directives of a complete quality assurance program. Two approaches to developing quality assurance programs have been described a prescriptive approach, in which an exact method of quality assessment is prescribed and a performance-based approach, in which any form of quality assessment is acceptable, provided that an acceptable level of statistical control can be demonstrated. 

Once a control chart is in use, new quality assessment data should be added at a rate sufficient to ensure that the system remains in statistical control. As with prescriptive approaches to quality assurance, when a quality assessment sample is found to be out of statistical control, all samples analyzed since the last successful verification of statistical control must be reanalyzed. The advantage of a performance-based approach to quality assurance is that a laboratory may use its experience, guided by control charts, to determine the frequency for collecting quality assessment samples. When the system is stable, quality assessment samples can be acquired less frequently. 

The market for pharmaceutical products clearly deviates from these preconditions in important respects. Product heterogeneity is the least critical of these preconditions since competitive markets would require only that consumers be able to assess differences in value (or quality) between goods with different products. Inadequacy of information, however, is a major problem, not only for consumers of prescription drugs, but for physicians in their roles as prescribers as well. Furthermore, whatever its merits may be, the patent system precludes free entry. 

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