Patent ID: 8719043

Claim:
A method of labeling and identifying a pharmaceutical product for verifying authenticity of the pharmaceutical product compared to a reference product comprising the steps of: (a) preparing a batch of the pharmaceutical product comprising at least one active ingredient and at least one or more inactive ingredient, (b) intentionally varying an amount of at least one of the one or more inactive ingredient in the batch of the pharmaceutical product from the amount in the reference product and wherein the step of intentionally varying the amount of the at least one of one or more inactive ingredient is within ranges allowed by a regulatory authority, (c) scanning the batch of the pharmaceutical product with a near-infrared (NIR) spectrometer and obtaining a multi-wavelength NIR region absorption spectrum thereby generating a unique NIR region spectrum for the batch of the pharmaceutical product, and wherein the unique NIR region spectrum is different from a reference NIR region spectrum of the reference product, and (d) inputting the unique NIR region spectrum for the batch to a database as a spectral signature for the batch of pharmaceutical product, thereby labeling and identifying the batch of the pharmaceutical product with the unique identifiable spectral signature for verifying authenticity of the batch of the pharmaceutical product.