Whitolac Oral Solution Sugar Free contains Lactulose at a concentration of 10 gm per 15 ml and is indicated primarily for the treatment of chronic constipation and hepatic encephalopathy. Lactulose is a synthetic disaccharide that is not absorbed in the gastrointestinal tract but undergoes fermentation by colonic bacteria, resulting in the production of organic acids that lower colonic pH. This acidification promotes osmotic retention of water in the bowel, thereby softening stools and facilitating bowel movements. Additionally, in hepatic encephalopathy, lactulose reduces the absorption of ammonia by converting it into ammonium ions, which are less readily absorbed, thus lowering systemic ammonia levels and improving neurological symptoms. Whitolac Oral Solution Sugar Free is suitable for patients requiring a sugar-free formulation, including diabetics. It is administered orally, with dosage adjusted according to the severity of the condition and patient response. Common side effects may include flatulence, abdominal discomfort, and diarrhea, which are generally mild and transient. Caution is advised in patients with galactosemia or intestinal obstruction. Regular monitoring and adherence to prescribed dosages are essential to ensure therapeutic efficacy and minimize adverse effects. Whitolac Oral Solution Sugar Free offers an effective and well-tolerated option for managing constipation and hepatic encephalopathy.