Duphalac Syrup 300ml is a laxative medication containing lactulose as the active ingredient. It is used to treat constipation and hepatic encephalopathy by promoting bowel movements and reducing ammonia levels in the blood. Duphalac comes in a 300ml white plastic bottle with a measuring cap for accurate dosing. The syrup has a sweet taste and should be taken according to the prescribed dosage. It works by drawing water into the bowel to soften stools and make them easier to pass. The effects typically begin within 24-48 hours of taking the medication. Store at room temperature away from direct sunlight and keep out of reach of children. Consult your healthcare provider before use, especially if pregnant, nursing, or taking other medications.