section_subject: "Drugs; significance of control numbers."
cfr_reference: "21 CFR 201.18"
title_name: "Title 21"
title_subject: "Food and Drugs"
parts_covered: "Parts 200 to 299"
revised_date: "Revised as of April 1, 2019"
publication_date: "As of April 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
---
The lot number on the label of a drug should be capable of yielding the complete manufacturing history of the package. An incorrect lot number may be regarded as causing the article to be misbranded.