Stay Safe From Fentanyl
TaeSun is a convenient safety kit for recreational drug use.
Support us on GoFundMe
Tae refers to the sun in Korean. As my son, Jackson was not just the sun to me but to all those who knew him. Jackson TaeSun was the double bright light that brought laughter and joy to all those who basked in his warmth.
Shockingly, fentanyl crushed this radiance in one swoop, vanquishing it from all our lives forever.
Founder
Dr. Jeanie Chung, MD PhD
Dr. Chung earned her PhD in Chemistry from the University of North Carolina at Chapel Hill and her MD from Cornell University. Dr. Chung has extensive experience in technical research and has been providing direct medical care for over 16 years.
My Son's Story
Jackson TaeSun Leddon.
Tae refers to the sun in Korean. As my son, Jackson was not just the sun to me but to all those who knew him. TaeSun was the double bright light that brought laughter and joy to all those who basked in his warmth. Shockingly, fentanyl crushed this radiance in one swoop, vanquishing it from all our lives forever.
Team supported by




NIDA Challenges Program
Current Challenges
2023 “$100,000 Start an SUD Startup” Challenge
The National Institute on Drug Abuse (NIDA) announced the 2023 “$100,000 Start an SUD Startup” Challenge in August of 2023, and now that the submissions have gone through the judging process, NIDA is delighted to share the results of the Challenge.
The following teams have been selected by the NIDA judges to receive the Stage 1 prize of personalized entrepreneurial mentoring for each team. Winner notification letters with instructions will be sent to the email addresses of the Team Leader.
TaeSun in the news
Salida resident aims to ‘make testing convenient’
After the tragic loss of her son, Jackson TaeSun Leddon, Dr. Jeanie Chung, a dermatologist, …
Colorado woman helping create fentanyl detection kits after son’s death
“I certainly do not want any other parents or friends to go through what our …
Our Journey
Tsai CITY summer fellowship
We’re turning up the heat at Tsai CITY this summer with thirteen teams participating in …
Startup Yale 2024 winner
Startup Yale 2024 presented by hashtag#TsaiCITY, Dwight Hall At Yale , Innovate Health Yale, Yale …
Winner of NIDA $100,000 challenge
2023 “$100,000 Start an SUD Startup” Challenge The National Institute on Drug Abuse (NIDA) announced …