These comments from 2018 say FDA approval was to complicated: https://news.ycombinator.com/item?id=17095954 https://news.ycombinator.com/item?id=17095954 > Th

These comments from 2018 say FDA approval was to complicated: https://news.ycombinator.com/item?id=17095954 https://news.ycombinator.com/item?id=17095954 > The product was being developed by Oragenics, but was shelved in 2014, citing regulatory concerns and patent issues.