Patent ID: 7807468
Filing Date: 2010-10-05
Classification: G01N,Y10T

Abstract:
1. A method of proving ingestion of a pharmaceutical product by a person participating in a clinical trial, comprising the steps of: selecting a natural material having a unique genetically controlled micromorphological structure that can be identified using microscopic examination; adding said natural material to a pharmaceutical product at a sufficiently low level so as not to have any significant effect on the pharmaceutical product other than to serve as a marker for the pharmaceutical product; obtaining a stool sample from the person after said pharmaceutical product is allegedly ingested; determining by use of microscopic examination whether the stool sample contains said particular natural material by visually identifying said unique genetically controlled micromorphological structure; and matching the detected natural material with information about pharmaceutical products that have been marked by natural marker materials to determine the particular pharmaceutical product ingested by the person.