These Fybogel sachets are a form of treatment that works to reduce the effects of constipation. Fybogel contains the active ingredient, Ispaghula Husk, which helps bulk-forming in the gut to help ease constipation. Bulk-forming works by increasing the amount of water that is absorbed by the stools in the gut. This increase in water helps to move them along in the digestive system. Fybogel Orange can be used in a diet where an increase in fiber is necessary. These sachets can also be used if you suffer from hemorrhoids to help maintain normal bowel movement.