What must be included in the labeling of medical devices according to FDA regulations?

The inclusion of adequate information for user understanding in medical device labeling is essential according to FDA regulations. This requirement ensures that the device is used safely and effectively by providing critical information about its intended use, proper use, potential risks, and any necessary precautions. The labeling must communicate clear instructions and information that enable users—whether healthcare professionals or patients—to make informed decisions about the use of the device.

This regulatory focus on user understanding is in line with the FDA's goal to promote safe and effective medical products. By mandating that labels contain comprehensive information, the FDA helps mitigate the risk of misuse or misunderstanding that could lead to adverse effects or ineffective treatment.

While warranty information, instructions for assembly and installation, and promotional materials may also serve a purpose, they do not align with the fundamental regulatory requirement of ensuring user understanding. Including adequate instructional content in labeling is a critical factor that plays a direct role in patient safety and device efficacy, making it the most important and relevant option in this context.