A 32-year-old pregnant woman with straining and hard stools. The most appropriate laxative to avoid abdominal cramping is which?

A 32-year-old pregnant woman with straining and hard stools. The most appropriate laxative to avoid abdominal cramping is which?

• A. Ispaghula husk
• B. Senna
• C. Lactulose
• D. Magnesium salts

Answer: (A)

Bulk-forming laxatives, like ispaghula husk, are preferred in pregnancy because they work by absorbing water in the gut to form a soft, bulky stool. This gently stimulates normal bowel movements without irritating the gut lining, and they are less likely to cause abdominal cramping or electrolyte disturbances when taken with adequate fluids. In contrast, stimulant laxatives such as senna increase gut motility and often produce cramps, which isn’t desirable for a patient already experiencing straining. Osmotic laxatives like lactulose and magnesium salts draw water into the bowel and commonly cause bloating, gas, and cramps, making them less suitable when cramping avoidance is the goal. Therefore, ispaghula husk is the most appropriate choice.

Bulk-forming laxatives, like ispaghula husk, are preferred in pregnancy because they work by absorbing water in the gut to form a soft, bulky stool. This gently stimulates normal bowel movements without irritating the gut lining, and they are less likely to cause abdominal cramping or electrolyte disturbances when taken with adequate fluids. In contrast, stimulant laxatives such as senna increase gut motility and often produce cramps, which isn’t desirable for a patient already experiencing straining. Osmotic laxatives like lactulose and magnesium salts draw water into the bowel and commonly cause bloating, gas, and cramps, making them less suitable when cramping avoidance is the goal. Therefore, ispaghula husk is the most appropriate choice.