Always follow your doctor’s instructions. However, typical over-the-counter lactulose dosages are as follows:
Adults
For constipation relief, adults usually start with 15-30 milliliters (ml) once daily. You can increase this to 45 ml daily if needed, but don’t exceed 60 ml without consulting a physician. Observe your bowel movements; if they’re too frequent or loose, reduce the dose.
Children
Lactulose dosage for children depends heavily on their age and weight. Consult your pediatrician for precise guidance. Generally, younger children will require smaller doses than adults. For instance, a child might start with 5-10 ml daily, adjusted based on their response. Closely monitor their bowel habits and adjust accordingly. Never administer lactulose to infants without specific medical advice. A doctor will determine an appropriate starting point and provide safe usage guidelines.
Important Note: This information is for general guidance only and does not replace professional medical advice. Always seek the advice of a healthcare provider before starting any medication, particularly for children. Incorrect dosage can cause adverse effects.
Precautions
Always read the product label carefully before using lactulose. Pay close attention to any specific instructions or warnings. Report any unusual side effects to your doctor. Lactulose may interact with other medications; discuss your current medication list with your doctor or pharmacist.


