21 CFR 201.57 - Specific Requirements for Prescription Drug Labeling Content and Format

What it says

Prescription drug professional labeling must present required information in a defined order and format, including highlights, boxed warnings where applicable, indications, dosage, contraindications and clinical data sections, so that prescribers can consistently locate critical safety and use information across different products.

Paraphrased for plain-language clarity. Always verify against the current published regulation text.

What it means in practice

• This provision's standardized format is what makes the professional labeling exemption discussed in 21 CFR 201.100 actually deliver value to prescribers, a consistent structure lets a clinician find dosing or contraindication information quickly regardless of which product's labeling they are reading.
• Because format and content are both specified, a labeling update driven by new safety information has to be integrated into the correct section in the correct order, not simply appended wherever convenient.
• Boxed warning formatting requirements carry particular weight, since this is the section most likely to be scanned first by a prescriber assessing whether a serious risk applies to their patient.

What FDA inspectors look for

• Whether current professional labeling follows the required section order and format, particularly for boxed warnings and highlights sections.
• Whether safety-related labeling updates were integrated into the correct, clearly identifiable section rather than added in a way that could be overlooked.
• Whether labeling content remains internally consistent across sections after an update, such as dosing information matching what is stated in both the highlights and full prescribing information.

Related regulations