Duphalac is a 300ml oral solution containing lactulose (667 g/l) used as a laxative medication. This liquid formulation helps treat constipation and maintain regular bowel movements through its osmotic properties. Duphalac contains lactulose as its active ingredient in a liquid oral solution form. The medication should only be taken under the direction and supervision of a healthcare provider. Each bottle contains 300ml of solution with a concentration of 667 g/l lactulose. The product comes in a white plastic bottle with a child-resistant cap.