Ferrograd Folic Prolonged Release Tablets (30)

Ferrograd Folic Prolonged Release Tablets (30). A controlled-release system in the tablet allows release of the iron over a number of hours and reduces the likelihood of stomach irritation.. The controlled-release system consists of a harmless plastic honeycomb with thousands of narrow passages containing iron.. As the tablet passes through the stomach and gut the iron is released and the empty honeycomb is passed out in the stools.