Normalac is a highly purified preparation based on lactulose, used for the treatment of constipation. It is an over-the-counter medication, available without a prescription. Normalac has a physiological mechanism of action with a low risk of side effects. Thanks to its high degree of purification, Normalac is safe for use in pregnant women and children.

Normalac contains only trace amounts of simple sugars, making it safe for patients with glucose intolerance or established diabetes.

The Normalac preparation does not interfere with the absorption of iron and calcium, an important factor for elderly patients, who often have deficiencies in these minerals.