Scientific American
Katherine Harmon
http://www.scientificamerican.com/article.cfm?id=microchip-implant-medication

For people who face frequent needle jabs to treat chronic conditions, a new technology is on the horizon that might make treatment a lot less painful.

Researchers report that a new wirelessly controlled microchip, implanted under the skin, can safely and reliably give osteoporosis patients the daily dose of a drug that they need for at least 20 days in a row. The findings were presented at the American Association for the Advancement of Science annual meeting in Vancouver and published online Thursday in Science Translational Medicine.

This is what mainly caught my eye -

QuoteTherapies that use hormones are particularly appealing for adaptation to microchip delivery because the body usually releases hormones intermittently—just as the chip does