
This article presents an overview of FDA’s recent update to the guidance document, Control of Nitrosamine Impurities in Human Drugs.
Aloka Srinivasan, PhD, is Principal and Managing Partner, Raaha LLC.

This article presents an overview of FDA’s recent update to the guidance document, Control of Nitrosamine Impurities in Human Drugs.

The authors discuss the differences in mechanism of activation of N-nitrosamides versus N-nitrosamines and the fact that they should not be treated the same.

The author provides a direction for identifying genotoxic impurities early in the drug development process, regulating genotoxic impurities at acceptable levels in the API or drug product, and avoiding negative product regulation late in the development and/or marketing process, including expensive recalls.

The selection of excipients is important in generic formulations due to the impact it has on the risk and performance of generic drugs.

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