The price of Lactulose generally ranges from 20 to 80 dollars, the use of oral-based, the dosage needs to be based on the patient’s specific situation will vary, please follow the doctor’s instructions. Lactulose is usually taken orally, such as for the treatment of constipation, children over 14 years of age and adults are recommended to start the dose of 15-30mL per day, children 6-14 years of age are recommended to start the dose of 15mL per day, infants and children under six years of age are recommended to start the dose of 5-10mL per day. When used for the prevention and treatment of hepatic encephalopathy, the recommended starting dose for adults is 15mL three to four times daily. Lactulose is generally priced at $20 to $80, with the exact price being affected by the dosage form, the pharmacy where it is sold, and other factors. The price of the same brand of lactulose oral solution in bags generally ranges from $50 to $80, while the price of the whole bottle generally ranges from $20 to $30; different pharmacies selling the same brand and dosage form of lactulose prices range from $25 to $35. As the price of Lactulose can vary greatly, please refer to the specific situation; patients who need to use Lactulose for treatment are recommended to use the drug under the guidance of a doctor.