Irbesartan is a drug used to counter high blood pressure and various types of heart diseases. It can also be used in combination with other drugs to counter these ailments based on the severity of the issue. Irbesartan is also identified as CAS No. 138402-11-6, which is a unique identifier for a distinct chemical substance. The purpose of this methodology is to provide medical institutions, industries, and regulatory bodies to have a globally recognised database to identify chemical substances along with their chemical structure, graphic representation and index name. From a layman’s purview, think of it as your passport or an Aadhar card.