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Process-Related Impurities

Meaning

Process-Related Impurities are defined as any extraneous, unwanted substances that are introduced or generated during the chemical synthesis, purification, or formulation of an active pharmaceutical ingredient (API) or drug product. These compounds are distinct from the intended therapeutic molecule and include unreacted starting materials, reagents, intermediates, or byproducts formed during side reactions. Rigorous control of these impurities is essential to ensure the quality, safety, and consistent clinical efficacy of hormonal therapies and other compounds.