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    Instructions for Use

    Information supplied by the manufacturer to inform the user of safe use of a device.

    Reviewed by Christian Espinosa, Founder, Blue Goat CyberLast reviewed May 5, 2026

    Definition

    Instructions for Use (IFU) provide directions necessary for users to safely and effectively use a medical device, including indications, contraindications, warnings, precautions, and operating instructions.
    What the regulation says
    Instructions for Use (IFU) are considered part of the medical device labeling and are subject to stringent regulatory control by authorities such as the FDA (21 CFR Part 801) and under the EU Medical Device Regulation (EU MDR) Annex I, particularly General Safety and Performance Requirements (GSPRs) 23.2. This ensures that users receive comprehensive information for safe and effective device operation. For in vitro diagnostic (IVD) medical devices, similar requirements are stipulated in the EU IVDR, emphasizing detailed performance characteristics and user instructions.

    What this means in practice

    IFU content is regulated by FDA labeling requirements (21 CFR Part 801) and EU MDR Annex I. Cybersecurity-relevant information must increasingly be included for connected devices.

    Examples

    • For a new infusion pump, the IFU details step-by-step programming instructions, compatible fluids, cleaning protocols, and warnings about potential drug incompatibilities.
    • An IFU for a diagnostic imaging device specifies power requirements, environmental conditions for optimal operation, image acquisition procedures, and limitations of the imaging modality.
    • The IFU for a surgical robot includes information on pre-operative setup, sterile draping procedures, emergency stop functions, and maintenance schedules.
    Common pitfalls
    • Not all required elements, such as warnings, contraindications, or cybersecurity information, are included in the IFU.
    • The IFU is not written in clear, unambiguous language readily understood by the intended user population.
    • The IFU is not adequately maintained and updated throughout the device's lifecycle to reflect changes or new safety information.
    • Failure to translate the IFU accurately for all markets where the device is sold, impacting user comprehension and safety.
    • Treating the IFU solely as a legal document rather than a critical tool for user education and risk mitigation.

    Frequently asked questions

    The primary purpose of an IFU is to provide all necessary information for the safe and effective use of a medical device, adhering to regulatory requirements set by bodies like the FDA and EU MDR.
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    Primary references

    3 sources
    Link health: 3 verified· last checked 2026-06-20
    eCFR·1FDA·1European Commission·1
    1. 1
      21 CFR Part 801
      Verified
      eCFRecfr.gov
    2. 2
      FDA - Medical Devices
      Verified
      FDAfda.gov
    3. 3
      European Commission - Medical Devices
      Verified
      European Commissionhealth.ec.europa.eu

    Inline markers like [1] jump to the matching reference above.