Lactulose is most effective when taken before breakfast. Lactulose is a western drug that combines galactose and fructose. After taking the drug, it can lubricate the intestinal tract through osmosis, which not only allows the pH value in the intestinal tract to drop, but also retains water in the stool to stimulate intestinal peristalsis, so it has a certain function as a drainage. When using lactulose to treat habitual constipation, you can choose to take it before breakfast, the drug ingredients can enter the intestine more quickly and work on the intestine, so the effect of improving constipation will be better. When taking lactulose oral solution, avoid taking it too many times. Generally, you only need to take it once in the morning when constipation occurs, once the dose is too much, it will affect your health. And during the taking period should maintain a good mood, appropriate massage on the abdomen to improve the therapeutic effect of the drug.