FDA Purple Book

FDA Purple Book

Follow the Division of Drug Information on X (formerly Twitter)

To follow DDI’s on Twitter handle (@FDA_Drug_Info), visit the following link or copy/paste the following URL into your browser: x.com/FDA_Drug_Info. Once you are on the DDI Twitter page, click Follow.

Email Updates

To stay up to date, subscribe to the 'CDER New' email list by following the webpage instructions.

Helpful Links

• What You Need to Know (and What We're Working to Find Out) about Products containing Cannabis or Cannbis-derived Compounds, including CBD