Excipients: Inactives that enhance functionality

Without having medicinal properties themselves, excipients enable active pharmaceutical ingredients to perform as intended – for example, by facilitating physiological absorption. They might facilitate disintegration, lubricity, flowability and other actions, thereby enhancing the drug’s functionality.


Excipients carry out several roles in drug formulations, such as:

  • · Supporting the processing of the drug delivery system during its manufacture
  • · Protecting, supporting, or enhancing stability, bioavailability or patient acceptability
  • · Assisting in product identification and enhancing any attribute of the overall safety
  • · Assisting in the effectiveness and/or delivery of the drug in use
  • · Assisting in maintaining the integrity of the drug product during storage

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