This medicine is available without prescription. However, you still need to use Senna Leaves carefully to get the best results from it. » Keep this leaflet. You may need to read it again. » Ask your pharmacist if you need more information or advice. » You must contact a doctor if your symptoms worsen or do not improve » If any of the side effects gets serious, or if you notice any side effect not listed in this leaflet, please tell your doctor or pharmacist. See section