Lactulose can be mixed with fruit juice, water, or milk to improve the taste. It may be 24 to 48 hours before the effects of lactulose are seen. Lactulose may darken slightly in color. This change is harmless. However, if lactulose becomes very dark or uneven in consistency, do not use it.
Store lactulose at room temperature away from moisture and heat.
Take the missed dose as soon as you remember. However, if it is almost time for your next dose, skip the dose you missed and only take your next regularly scheduled dose. Do not take a double dose of this medication unless otherwise directed. Seek emergency medical attention. Symptoms of a lactulose overdose are not known, but diarrhea, abdominal cramps, and possible complications of dehydration from excessive diarrhea would be expected.