Editorial: It Just Doesn't Fit!
We will take a break this week from our continuing discussions on Current Good Manufacturing Practices (cGMP) content and talk about a related matter. What USP General Chapters are for Good Manufacturing Practices (GMPs) and which ones are for Good Compounding Practices (GCPs)?
Scenario 1: One trades in their car and purchases a new dump truck. Upon driving it home and opening the garage door, you find "It just doesn't fit!"
Scenario 2: One wants to cook a 12-pound turkey for this weekend, and it is all prepared and ready. You then try to place it an EZ Bake Oven, and you find "It just doesn't fit!"
Some are attempting to apply many USP General Chapters to compounding and finding "It just doesn't fit." Many of the chapters were never intended for compounding in the first place; but were intended for the pharmaceutical industry and manufacturing; some for both.
Up until USP XVIII (1970), the USP did not have "General Chapters"; it had a section on "General Tests, Processes, and Apparatus." Also, in the PREFACE, it stated, "However, procedures by which good manufacturing practice is implemented are decidedly related to drug standards, and consequently much of the revision embodied herein serves to necessitate and/or demonstrate compliance with what are regarded as the best practices." The USP also discusses the relationship and impact of the 1962 Amendments to the Food, Drug, and Cosmetic Act, the U.S. Food and Drug Administration and United States Pharmacopeia.
In the USP XIX (1975), the USP introduced the General Chapters, but they were un-numbered. It is apparent that these chapters were targeted at both pharmacist practitioners and manufacturers. In some cases, both practitioners and manufacturers are referred to within the same chapter. There were about 80 General Chapters and 16 sections of the General Information, Processes, Techniques, and Apparatus that remained.
In USP XX (1980), the USP began "numbering" General Chapters (i.e., <1>); there were 100 enforceable General Chapters and 19 General Information chapters. Information contained in the General Information, Processes, Techniques, and Apparatus sections was incorporated into the General Chapters.
In the last 32 years, additional General Chapters have been written. In USP 35, there are 145 General Chapters (Enforceable), 94 General Chapters (Informational), and 7 Dietary Supplement General Chapters.
It is evident for the vast majority of these chapters that they are directed to GMPs and manufacturers; some are pharmacy practice specific. However, some also apply to both, and it is in this area that we have difficulties.
It is impossible to apply many of the chapters to compounding pharmacy when they were written primarily for manufacturers because "they just don't fit"! However, there are some portions of some of the chapters that can be used, but not in their entirety. This is a vitally important project for the USP Expert Committee on Compounding to undertake and clearly delineate what chapters and what parts of some chapters are intended for compounding practitioners.
This is a request to not force the dump truck into the garage or the turkey into the EZ Bake Oven, but to use COMMON SENSE in the application of many of these chapters. After all, even though it is felt by some regulators that some action is necessary in light of recent events, it is the patient that is placed at risk by forcing standards where they are not intended when patient medications are no longer available. Quality compounded pharmaceuticals provide a "middle ground" to accommodate patients for whom medications are unavailable; that is what we should strive for!
Loyd V. Allen, Jr., PhD, RPh
Editor-in-Chief
International Journal of Pharmaceutical Compounding
Remington: The Science and Practice of Pharmacy
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