Which type of laxative is most appropriate for IBS patients?

• A. Emollient
• B. Osmotic
• C. Stimulant
• D. Bulk

Answer: (D)

Bulk-forming laxatives are best for IBS because they work like dietary fiber to add bulk and moisture to the stool, which helps normalize bowel movements without provoking cramping or dependence on the laxative. They gently slow or regulate transit and improve stool consistency, making them useful for constipation-predominant IBS and often helpful to stabilize stool in IBS overall. They should be started with adequate fluid intake and used consistently to avoid worsening bloating or gas; timing with other medications is important since these fibers can affect absorption if taken at the same time. Emollients are milder and often less effective for IBS symptoms, osmotic laxatives can cause more cramping and gaseous symptoms, and stimulant laxatives tend to provoke cramping and are not ideal for ongoing IBS management.