Most people who are mildly constipated do not need laxatives. However, for those who have made lifestyle changes and are still constipated, health care providers may recommend laxatives or enemas for a limited time. These treatments can help retrain a chronically sluggish bowel. For children, short-term treatment with laxatives, along with retraining to establish regular bowel habits, also helps prevent constipation. A health care provider should determine when a patient needs a laxative and which form is best.
Laxatives taken by mouth are available in liquid, tablet, gum, powder, and granule forms.
Bulk-forming laxatives generally are considered the safest but can interfere with absorption of some medicines. These laxatives, also known as fiber supplements, are taken with water. They absorb water in the intestine and make the stool softer. Stimulants cause rhythmic muscle contractions in the intestines. Most laxative makers have replaced or plan to replace phenolphthalein with a safer ingredient.