Bottle containing 10 examples of oral insulin 'Capsulin' pill, made by Diabetology Limited, UK, c.2007.

‘Capsulin’, an oral insulin pill, is a potentially safer and more convenient way for people with diabetes to regulate their insulin levels. Diabetology Ltd, who make the tablet, have proposed that taking insulin orally rather than by injection more accurately mimics the natural emission of insulin from the pancreas. When injected into the body, insulin does not penetrate the skin easily. Other non-injecting methods of regulating insulin levels include inhalers and patches.