Syndol Tablets relieve acute moderate pain such as headache (including muscle contraction or tension headache), migraine, neuralgia, period pain, toothache and other dental pain, muscular and rheumatic aches and pains and pain following surgery or dental procedures. Syndol Tablets contain four active ingredients to relieve pain: __Paracetamol:__ a pain reliever (analgesic) that also helps to reduce your temperature when you have a fever. __Codeine Phosphate:__ a pain reliever (analgesic). __Caffeine:__ a mild stimulant that helps to increase the pain relief from paracetamol and makes you more alert. __Doxylamine Succinate:__ an antihistamine. Syndol Tablets are for short term treatment and should only be taken for pain that is not relieved by paracetamol, ibuprofen or aspirin alone and should not be taken for more than 3 days at a time. They are suitable for adults and children over 12 years but are not suitable for under 18s who have had their tonsils or adenoids removed due to Obstructive Sleep Apnoea Syndrome.