Prunelax Ciruelax Regular Jam is an effective natural laxative made from a combination of fruit, flax seed and herbs that relieves occasional constipation and helps maintain bowel regularity. Its formula it's perfectly combined to offer a gentle, predictable and effective solution that works in just 8 to 12 hours, providing overnight relief from constipation. Adults and children 15 years of age and over take one teaspoon (0.53 oz) before bedtime. Prunelax Ciruelax is 100% gluten-free.