Panadol Night tablets provide fast and effective relief from fever, aches and pains associated with colds and flu, headaches, backache, rheumatic and muscle pains, period pains and toothache. Panadol Night tablets contain paracetamol which is an analgesic (a pain killer which relieves aches and pains) and antipyretic (it reduces body temperature when you have a fever) and diphenhydramine hydrochloride, an antihistamine which acts to relieve the symptoms of cold and 'flu (congestion) and aids restful sleep.