Zerrilose Lactulose 3.35g/5ml Syrup is an osmotic laxative designed to relieve constipation. Each 5ml dose contains 3.35g of lactulose, which works by drawing water into the bowel to soften stools and stimulate bowel movements. The syrup comes in a pleasant orange flavor, making it easier to consume. The 60ml bottle provides a convenient option for treating constipation in both short-term and long-term cases.