Senokot Syrup 500ml is a laxative made with natural senna treated especially to yield a constant amount of active ingredient in each dose, to give predictable relief from occasional or non-persistent constipation. Senokot Syrup is suitable for both adults & children & great for those who do not like swallowing tablets. The active ingredientis the extract of the senna plant. The senna plant has been used as a laxative for many years, & has proven to be safe. The bowel works by pushing stools down using a wave-like motion known as peristalsis. The senna in Senokot gently stimulates the bowel, pushing stools down faster. This is a reliable way of relieving constipation. Size 500ml.