Glossary

Explanation of terms used by DrugBank

Inactive ingredient

Synonyms:
Excipient

Inactive ingredients, also called excipients, are substances found in a drug product other than the active ingredient. Inactive ingredients act as a vehicle for the delivery of the active ingredient to the biological target. Therefore, the excipients are chemically inactive substances used for long-term stabilization, bulking up, for the facilitation of drug properties such as absorption, viscosity reduction, and solubility enhancement, and to facilitate the manufacturing process.