https://www.sciencedaily.com/releases/2018/09/180920161054.htm

Smart pills, or digital pills, are prescription medications equipped with edible electronic sensors that send wireless messages to devices, like patches and smartphones or tablets, outside the body when they are ingested. The first of its kind, which is used to treat patients with schizophrenia, bipolar disorder and major depressive disorder, was approved for use in humans by the U.S. Food and Drug Administration in 2017.

Some hope the technology will help patients and doctors track drug regimen compliance and increase patient adherence, which estimates show may save between $100 and $300 billion annually in the U.S. Others have concerns about patient privacy, consent and data sharing.