The BNF is a joint publication of the British Medical Association and the Royal Pharmaceutical Society of Great Britain. It is published under the authority of a Joint Formulary Committee which comprises representatives of the two professional bodies and of the UK Health Department. The BNF aims to provide doctors, pharmacists and other healthcare professionals with sound up-to-date information about the use of medicines. For more information about the BNF, visit our website at www.pharmpress.com/bnf.