Lactulose is generally referred to as lactulose oral solution, baby constipation taking the drug is usually effective in 2-3 days, if not relieved it is recommended to seek medical attention, the specific time to take the medication should be used in accordance with the doctor’s instructions. Lactulose oral solution is used for chronic or habitual constipation. According to the instructions of Lactulose, constipation may be relieved usually in 2-3 days. If there is no significant effect after 2-3 days of use, you should consult your doctor whether you need to change the medicine or continue taking it. Babies may have adverse reactions such as bloating after taking the drug, which can usually be relieved on its own. It is recommended to use Lactulose Oral Solution under the guidance of a doctor, and the exact time of use should also be according to the baby’s own condition and follow the doctor’s instructions.