Oversimplified: How Drug Injector Demonstrations on Television Can Create Dangerous Overconfidence

By Jack Sharples and Tyler Oates

In today's media landscape, we're constantly exposed to bite-sized information about complex and unfamiliar topics, especially in the medical industry. Whether in popular medical dramas or pharmaceutical commercials, the oversimplification of medical device use raises critical questions about safety, particularly when it comes to autoinjector demonstrations in television advertisements.

Consider the common scenario of a pharmaceutical advertisement showing a quick, simplified demonstration of an autoinjector. The process looks straightforward: choose a site, inject the medication, and you’re done. But is this abbreviated demonstration helping or harming the potential for correct device use?

The concern lies in two psychological phenomena that affect how we process and internalize information. The anchoring effect is our tendency to rely heavily on the first piece of information we encounter about a topic. In the above scenario, when viewers learn about autoinjector use through these brief demonstrations on TV, they may become mentally "anchored" to an incomplete version of the process. After anchoring occurs, it is often more difficult for users to understand and incorporate the critical safety steps that weren't shown in the advertisement.

The anchoring effect can combine dangerously with the Dunning-Kruger effect, which is the tendency for people with limited knowledge in a subject to overestimate their understanding of it. After watching several simplified demos, viewers may develop a false sense of mastery of autoinjector use. They might think, "I've seen this done multiple times. It looks easy enough." This confidence isn't always aligned with actual competence, which can lead to a lack of awareness in essential safety procedures, contraindications, or emergency responses.

Figure 1: https://thedecisionlab.com/biases/dunning-kruger-effect

Mitigating Risks: A Path Forward

The potential risks of abbreviated autoinjector demonstrations warrant serious consideration by pharmaceutical companies, regulators, and healthcare providers. While these advertisements have important marketing purposes, their current format may be inadvertently creating crucial safety concerns.

Based on our knowledge and experience in medical device safety, we developed several recommendations that may address safety concerns:


1. Pharmaceutical companies should conduct human factors research to evaluate the impact of truncated demonstrations on user behavior and risk perception. This research should specifically examine whether viewers develop incorrect mental models or skip critical safety steps based on their exposure to simplified demonstrations.


2. Until such research is completed, all autoinjector advertisements should include prominent warnings that clearly communicate:

    a. The demonstration shown is incomplete.

    b. Viewing the advertisement does not constitute training.

    c. Users must thoroughly review all Instructions for Use and safety information.

    d. Training from a healthcare provider is essential before self-administration.


3. Pharmaceutical companies should consider redesigning their advertising approach to better balance marketing needs with safety concerns. This could include:

    a. Adding QR codes linking to complete training resources.

    b. Incorporating visual cues that emphasize the demonstration is one part of a larger use process.

    c. Creating companion materials that highlight critical steps not shown in advertisements.

    d. Developing parallel educational campaigns about the importance of complete device training. 


The convenience of autoinjectors has revolutionized self-administration of many medications. However, this convenience should not come at the cost of safety. By acknowledging and addressing the psychological impact of truncated demonstrations, we can work toward advertising approaches that inform without creating dangerous overconfidence.