LIDOSAN SPRAY contains lidocaine, a local anaesthetic (anaesthetic and painkiller acting on a specific area) oft he acid amide type. LIDOSAN SPRAY is preferably sprayed onto the mucous membrane, where it causes a temporary anaesthesia limited to the area application. The time to take effect depends on the area treated and usually occurs within 1-3 minutes. The duration oft he anaesthesia is around 10-15 minutes.