Updated: 30th June 2026
Reviewed by: David Small BSc (Hons), MSc, MTOPRA (Founder and CEO)
Ensuring Compliance and Safety
Medical device labelling is a critical component of regulatory compliance and user safety. It serves as a bridge between manufacturers and end-users, providing essential information about a device’s use, safety, and limitations. In the European Union, the EU Medical Device Regulation (MDR) and In Vitro Diagnostic Regulation (IVDR) outline strict requirements for device labelling, ensuring consistency and reliability across the industry.
In this blog, we explore the key elements of medical device labelling, regulatory requirements, and best practices to help manufacturers achieve compliance.
Need an Introduction to the EU MDR?
This article focuses on medical device labelling under the EU MDR. If you're looking for a complete overview of the Medical Device Regulation, including classification, GSPRs, technical documentation, UDI, CE marking and post-market obligations, read our Complete Guide to the EU MDR.
What is Medical Device Labelling?
Medical device labelling encompasses all written, printed, or graphic information provided with a device. This includes:
Labels affixed to the device itself, packaging, or both.
Instructions for Use (IFU) providing detailed guidance on the device’s operation and maintenance.
Electronic Instructions for Use (eIFU), where permitted, offering digital access to information.
The purpose of labelling is to ensure users can operate the device safely and effectively while adhering to applicable laws and standards.
Why Medical Device Labelling Matters
Medical device labelling is far more than a regulatory requirement—it is one of the primary ways manufacturers communicate essential safety and performance information to users throughout the product lifecycle.
Accurate labelling enables healthcare professionals, patients and distributors to correctly identify medical devices, understand their intended purpose and use them safely. It also supports traceability through Unique Device Identification (UDI), facilitates post-market surveillance activities and assists manufacturers in meeting their regulatory obligations.
Poorly designed or inaccurate labels can have serious consequences. Missing information, incorrect symbols, translation errors or outdated Instructions for Use (IFUs) may lead to misuse of a device, regulatory findings, product recalls or delayed market access.
Under both the EU Medical Device Regulation (EU MDR 2017/745) and the UK Medical Devices Regulations, manufacturers are responsible for ensuring that all labels and accompanying information remain accurate, up to date and appropriate for the intended users throughout the product lifecycle.
Effective labelling should therefore be considered as an integral part of the manufacturer’s Quality Management System and Technical Documentation rather than a final activity completed immediately before product release.
EU MDR and IVDR Labelling Requirements
The EU MDR and IVDR emphasize the importance of clear, comprehensive, and accurate labelling. Key requirements include:
1. Language and Clarity
Labels and IFUs must be written in the official language(s) of the Member State where the device is marketed.
Information must be clear, legible, and understandable to the intended user, whether a healthcare professional or layperson.
2. Content Requirements
Labels must include:
The name and address of the manufacturer and, if applicable, the Authorized Representative (AR).
A unique device identifier (UDI).
Device name, model, and intended purpose.
Warnings, precautions, and any special operating instructions.
Storage and handling conditions.
Expiry or manufacturing dates, where applicable.
3. Symbols and Standards
Symbols used on labels must comply with recognized standards, such as ISO 15223-1, to ensure consistency and ease of interpretation.
4. Electronic Instructions for Use (eIFU)
For certain devices, manufacturers may provide eIFUs as an alternative to printed instructions. These must meet specific requirements under EU Regulation 207/2012, ensuring accessibility and user-friendliness.
Instructions for Use (IFUs)
Instructions for Use (IFUs) provide users with the detailed information necessary to install, operate, maintain and dispose of a medical device safely.
Depending on the complexity of the device, the IFU may include:
- Intended purpose.
- Intended users.
- Contraindications.
- Warnings and precautions.
- Installation instructions.
- Operating instructions.
- Maintenance requirements.
- Cleaning and disinfection procedures.
- Troubleshooting guidance.
- Storage conditions.
- Disposal information.
Manufacturers should ensure that the information contained within the IFU is consistent with the product label, Technical Documentation and Risk Management File. Any updates to device design, performance or intended purpose should trigger a review of both the label and accompanying Instructions for Use.
Unique Device Identification (UDI)
Unique Device Identification (UDI) is a global system designed to improve the traceability of medical devices throughout their lifecycle. Under the EU Medical Device Regulation (EU MDR), most medical devices must carry a Unique Device Identifier on the device label, packaging or both, depending on the applicable implementation requirements.
A UDI consists of two key elements:
UDI-DI (Device Identifier)
The UDI Device Identifier (UDI-DI) is the fixed portion of the UDI that uniquely identifies a specific medical device model. It remains the same for all devices sharing the same model and intended purpose unless significant changes require the allocation of a new identifier.
UDI-PI (Production Identifier)
The Production Identifier (UDI-PI) contains variable production information such as:
- Batch or lot number.
- Serial number.
- Manufacturing date.
- Expiry date.
- Software version, where applicable.
The UDI-PI enables individual production batches or serialised devices to be traced throughout the supply chain and supports efficient corrective actions should safety concerns arise.
Basic UDI-DI
The Basic UDI-DI is the primary identifier used within regulatory documentation. Although it does not normally appear on the product label itself, it is referenced throughout the manufacturer’s Technical Documentation, Declaration of Conformity and EUDAMED registration.
Supporting Traceability and Post-Market Surveillance
UDI plays a vital role in improving traceability across the medical device lifecycle. It enables manufacturers, healthcare providers and regulatory authorities to identify affected devices rapidly during recalls, Field Safety Corrective Actions (FSCAs) and vigilance investigations.
UDI also strengthens post-market surveillance by supporting complaint investigations, trend reporting and the collection of real-world performance data.
For a detailed explanation of UDI requirements under the EU MDR, read our Complete Guide to Medical Device UDI
Medical Device Symbols (ISO 15223-1)
Medical device labels frequently use internationally recognised symbols to communicate important information without relying solely on written text. Using harmonised symbols improves consistency, reduces translation requirements and helps users quickly understand critical safety information.
ISO 15223-1 is the internationally recognised standard that specifies symbols for medical device labels, packaging and accompanying information. These symbols cover a wide range of information, including:
- Sterile status.
- Single-use devices.
- Batch or lot numbers.
- Expiry dates.
- Manufacturer details.
- Date of manufacture.
- Catalogue numbers.
- Temperature limitations.
- Consult Instructions for Use.
- Caution and warning information.
Manufacturers should only use recognised symbols that comply with applicable standards. Creating custom symbols or modifying recognised symbols can introduce confusion and may lead to regulatory non-compliance.
ISO 20417 complements ISO 15223-1 by providing requirements for the information supplied by the manufacturer, including the use of symbols on labels and Instructions for Use.
To learn more about recent changes to medical device symbols, read our guide to ISO 15223-1:2025 and Medical Device Symbol
Language Requirements
Medical device labels and Instructions for Use must be provided in a language that can be readily understood by the intended users within the country where the device is made available.
Within the European Union, individual Member States determine the language requirements applicable to medical devices placed on their national markets. Manufacturers should therefore verify the specific language requirements for each country before placing devices on the market.
In the United Kingdom, information supplied with medical devices should be provided in English unless specific exemptions apply.
Manufacturers should also consider the intended users when preparing labelling. Devices intended for healthcare professionals may use technical terminology where appropriate, whereas products intended for patients or other lay users should use clear, accessible language that can be easily understood.
Translations should be professionally managed and subject to appropriate review procedures. Inaccurate translations may lead to misuse of the device, increased regulatory scrutiny and potential patient safety risks.
As part of the Quality Management System, manufacturers should maintain documented procedures for reviewing, approving and updating translated labels and Instructions for Use whenever changes are made.
What Must Appear on a Medical Device Label?
Although the exact requirements depend on the type of medical device, manufacturers are generally expected to include sufficient information for users to identify the device, understand its intended purpose and use it safely.
Typical label information includes:
- Manufacturer name and address.
- EU Authorised Representative and/or UK Responsible Person details, where applicable.
- Device name and model.
- Catalogue or reference number.
- Batch number or serial number.
- Unique Device Identifier (UDI).
- Manufacturing date.
- Expiry date, where applicable.
- Sterility information.
- Single-use or reusable status.
- Storage and transportation conditions.
- Warnings and precautions.
- Special handling requirements.
- Applicable regulatory symbols.
The information provided should remain clear, legible and durable throughout the expected lifetime of the product and should be consistent with the manufacturer’s Technical Documentation and Declaration of Conformity.
Common Labelling Challenges
Medical device manufacturers often face challenges in developing compliant labels, including:
Language Barriers: Ensuring translations are accurate and culturally appropriate.
Frequent Updates: Regulatory changes may require regular updates to labelling content.
Space Constraints: Including all required information on small device packaging.
Best Practices for Medical Device Labelling
To overcome these challenges and ensure compliance, manufacturers should follow these best practices:
1. Conduct a Gap Analysis
Review your current labels against EU MDR/IVDR requirements to identify and address gaps
2. Use Standardized Symbols
Incorporate internationally recognized symbols to communicate critical information efficiently.
3. Prioritize User-Centric Design
Ensure labels and IFUs are designed with the intended user in mind, considering their language, literacy level, and potential accessibility needs.
4. Maintain a Labelling Management System
Implement a robust system for managing labelling content, updates, and approvals to ensure compliance and consistency.
5. Test Labelling Effectiveness
Conduct usability testing to verify that users can understand and follow the instructions provided.
Common Medical Device Labelling Mistakes
Even experienced manufacturers can encounter labelling issues during regulatory reviews or Notified Body assessments. Many of these issues are avoidable through robust document control, effective design review and regular compliance checks.
Some of the most common labelling deficiencies include:
- Missing or incorrectly formatted Unique Device Identifiers (UDI).
- Incorrect or outdated ISO 15223-1 symbols.
- Translation errors that alter the intended meaning of warnings or Instructions for Use.
- Missing importer, EU Authorised Representative or UK Responsible Person information where required.
- Incorrect manufacturer details or contact information.
- Inconsistent information between the device label, Instructions for Use and Technical Documentation.
- Incorrect date formats or missing expiry dates.
- Missing storage or transportation conditions.
- Failure to update labels following design changes or regulatory updates.
Manufacturers should regularly review labelling as part of their Quality Management System and change control process to ensure continued compliance throughout the product lifecycle.
How Patient Guard Can Help
At Patient Guard, we understand the complexities of medical device labelling under the EU MDR and IVDR. Our expert team offers tailored services to help manufacturers develop compliant labels and IFUs, from gap analyses and content development to usability testing and Notified Body submissions. We ensure your labelling meets regulatory requirements and enhances user safety.
Patient Guard also supports manufacturers with:
- Medical device label reviews and compliance assessments.
- Instructions for Use (IFU) preparation and review.
- ISO 15223-1 symbol selection and implementation.
- Unique Device Identification (UDI) implementation.
- Technical Documentation preparation and review.
- UKCA and CE marking regulatory support.
- Gap analyses against EU MDR, UK MDR and IVDR labelling requirements.
- Ongoing regulatory support following product or labelling changes.
Frequently Asked Questions About Medical Device Labelling
Medical device labels typically include the manufacturer’s details, device name, catalogue number, batch or serial number, UDI, expiry date where applicable, storage conditions, warnings, regulatory symbols and other information necessary for the safe and effective use of the device.
A Unique Device Identifier (UDI) is a globally recognised identification system that improves the traceability of medical devices. It consists of a Device Identifier (UDI-DI) and a Production Identifier (UDI-PI), helping manufacturers and regulators identify products throughout their lifecycle.
Not always. The EU MDR allows certain low-risk devices to be supplied without printed Instructions for Use where the device can be used safely without them. However, manufacturers must be able to justify this decision and comply with applicable regulatory requirements.
Yes. Electronic Instructions for Use may be used for certain categories of medical devices where permitted by legislation, provided manufacturers meet the applicable accessibility and usability requirements.
ISO 15223-1 is the international standard that specifies symbols used on medical device labels, packaging and accompanying information. Using recognised symbols improves consistency, supports international trade and helps reduce language barriers.
Yes. Medical device labels and Instructions for Use must generally be provided in the language(s) required by the country where the device is marketed. Manufacturers should verify the specific language requirements for each jurisdiction.
The device label provides essential identification and safety information directly on the device or its packaging, while the Instructions for Use contain more detailed information about installation, operation, maintenance, warnings and safe use.
Non-compliant labelling may result in regulatory findings, delays to market approval, product recalls, Field Safety Corrective Actions (FSCAs) or enforcement action by the relevant Competent Authority.
Although many requirements remain similar, there are important differences between the EU MDR and UK Medical Devices Regulations, including references to CE marking, UKCA marking, UK Responsible Persons and EU Authorised Representatives. Manufacturers supplying both markets should ensure their labelling complies with the applicable legislation.
Yes. Patient Guard provides expert support with medical device labelling, Instructions for Use, ISO 15223-1 symbols, UDI implementation, Technical Documentation and regulatory compliance for manufacturers placing devices on the UK and EU markets.
Summary
Medical device labelling is more than a regulatory requirement—it is a vital tool for ensuring safety, usability, and market success. By adhering to EU MDR and IVDR labelling requirements and implementing best practices, manufacturers can confidently navigate the regulatory landscape and build trust with their users. Contact Patient Guard today to learn how we can support your labelling compliance journey.
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