Biomedical information has a particular importance in the scientific endeavor, because this may contain many different data, from patient clinical data, testing and reactions to medications, so it is necessary to integrate and promote the use of technologies and systems to structure the information so that it can be accessed and used in a more personalized way, as could be a thesaurus for the pharmacological area. Pharmacology uses a particular language that allows recognize, describe and ascribe different areas related as anatomy, biochemistry, biology, and even other administrative branches that make reference to drugs, expenses, inventory, among others. This specialized language is enriched with the theory and practice of health sciences, generating a complex vocabulary. The terms that integrate this language, are subject to certain using rules depending on the environment of the area of application and approval (standardization) of the area, and these can be stored in databases and related to other terms via a thesaurus.