It's a blood test, so probably never OTC. There's already a test approved: https://medicine.wustl.edu/news/blood-test-for-alzheimers-highly-accurate-in-large-in

It's a blood test, so probably never OTC. There's already a test approved: https://medicine.wustl.edu/news/blood-test-for-alzheimers-highly-accurate-in-large-international-study/ https://medicine.wustl.edu/news/blood-test-for-alzheimers-hi...