Lact-D Laxative Liquid Sugar Free contains Lactulose (10gm), a synthetic disaccharide used primarily as an osmotic laxative to treat constipation. Lactulose works by increasing the water content and volume of stools through fermentation by colonic bacteria, which produces organic acids that acidify the colon and promote peristalsis. This mechanism facilitates easier bowel movements without causing significant electrolyte imbalance. Lact-D Laxative is indicated for the relief of occasional constipation and is particularly useful in patients who require a gentle, non-irritating laxative. The sugar-free formulation makes it suitable for diabetic patients or those on sugar-restricted diets. It is administered orally, with dosage individualized based on the severity of constipation and patient response, typically starting with 15-30ml daily. The onset of action usually occurs within 24 to 48 hours. Lactulose is generally well tolerated; however, potential side effects may include bloating, flatulence, and abdominal discomfort. It should be used with caution in patients with galactosemia and avoided in cases of intestinal obstruction. Lact-D Laxative Liquid Sugar Free is contraindicated in patients with hypersensitivity to lactulose or any of its components. Consultation with a healthcare professional is advised before use, especially in pregnant or lactating women.