Senokot Maximum Strength Tablets Senokot is a laxative made with natural senna treated especially to yield a constant amount of active ingredients in each dose, to give predictable relief from occasional or non-persistent constipation. Senokot Maximum Strength Tablets contains double the strength of Senokot Tablets, & has a predictable action that works in 8-12 hours. Ingredients Standardised senna, calcium phosphate, maize starch, lactose & magnesium stearate. Directions Oral administration. Adults & children over 12: take one tablet at night. (Do not take more than 1 tablet in any 24hr period). Children under 12: Consult your doctor.