Fiberlax Ultra Effervescent Granules is a digestive health supplement that combines natural fiber (ispaghula husk) with an antispasmodic agent (mebeverine hydrochloride). It is designed to relieve constipation, regulate bowel movements, and ease abdominal cramps or discomfort, especially in individuals with irritable bowel syndrome (IBS). The effervescent granules dissolve in water, making the supplement easy to consume, and work by forming bulk in the intestine and relaxing intestinal muscles to promote smooth and pain-free digestion.