Description : 301320751604 1 Doctor Recommended Laxative Brand Prevents Constipation 2 Eases Discomfort of Hard Stools Fleet Sof-Lax works in 12 to 72 hours. Fleet Sof-Lax is an effective aid to prevent the formation of hard stools that may lead to constipation. The stool softener facilitates absorption of water by the stool, making it softer and easier to pass. Fleet Sof-Lax relieves straining, minimizing painful bowel movements often associated with hemorrhoids, post-partum, or post-surgery. From C.B. Fleet Co, Inc. the most trusted name in Laxatives.