Klick Research: Those using voice tech for medication info get most accurate results from Google Assistant

New research from Klick Applied Sciences found that people using interactive voice technology for information on medications still get the most accurate results from Google Assistant. Management says the data are especially relevant as consumers have increasingly been turning to these platforms during the pandemic. Klick conducted the research as a follow-up to its June 2019 first-of-its-kind study assessing Google Assistant, Siri, and Alexa’s comprehension of the 50 most dispensed brand and generic medication names in the U.S.

According to the authors of, “Medication name comprehension of Intelligent Virtual Assistants: A comparison of Amazon Alexa, Google Assistant, and Apple Siri between 2019 and 2021” in Frontiers in Digital Health, while Google continued to provide the most accurate search results for drug names, Alexa and Siri dramatically improved their comprehension accuracy. The findings signal an improvement in their AI software algorithms to better recognize the complex speech characteristics of most medication names.

“A voice assistant’s ability to accurately recognize proper medication names can have life-altering consequences for patients who use technology to help manage their health,” says Yan Fossat, VP of applied sciences, Klick Labs and principal investigator of the ongoing research. “We continue to be encouraged by the progress of these findings and expect AI to grow more ‘intelligent’ as it gathers more data from users to update software algorithms. However, our research suggests that patients and consumers should not solely rely on voice platforms for accessing important medical information and advice.”

According to the study, Siri delivered the most improved performance with 78.4 percent brand-name accuracy and 75 percent generic accuracy (up from 58.5 percent and 51.2 percent respectively).

Alexa again ranked third with 64.2 percent accuracy on brand names (up from 54.6 percent in 2019), and 66.7 percent for generics (up from 45.5 percent).

And Google Assistant’s accuracy rates largely remained the same, with 86 percent for brand names and 84.3 percent for generics, indicating a possible “ceiling effect” in performance to researchers as the software has already achieved peak accuracy, and the small percentage of issues it encountered were likely due to human error.

The authors note that interestingly, there were no significant differences in accuracy based on people’s accents, unlike the 2019 study, which revealed Siri and Alexa were 8 percent to 11 percent less accurate for people with foreign accents.

“Not only does this show that the AI systems have made tremendous progress in better detecting and understanding accents, but it tells us that the latest voice assistant technology is more usable for consumers from a wider range of demographic groups, which is extremely important and good news given the diverse population,” says Adam Palanica, Ph.D., a Klick scientist and co-author of both studies.

Fossat adds that the latest study is especially telling as the global health crisis has accelerated the uptake of the already-growing trend toward using voice assistants in medicine and telehealth. He cites pre-pandemic data showing that almost half of the 19.1 million U.S. consumers, who previously used a voice assistant for a healthcare inquiry or task, had used it to find medication information.

“Interactive voice assistants are fulfilling a very legitimate need for people who are using them to help manage several aspects of their lives, including their health,” he says. “While many new technologies can generate excitement with their potential to transform healthcare, it is critical to decouple hype from health by scientifically and objectively assessing their real capabilities.”