This data package contains the details of substances in drugs, biologics, foods and devices registered with a Unique Ingredient Identifier (UNII) through the joint FDA/USP Substance Registration System (SRS). It also contains a list of the names used for each UNII and the changes made to Unique Ingredient Identifiers’ (UNIIs) descriptions to the latest update.
The overall purpose of the joint FDA/USP Substance Registration System (SRS) is to support health information technology initiatives by generating unique ingredient identifiers (UNIIs) for substances in drugs, biologics, foods, and devices.
Update Frequency: Irregular
1. Unique Ingredient Identifier Changes
2. Unique Ingredient Identifier Names
3. Unique Ingredient Identifier Records