Naltrexone for the management of opioid dependence / NICE, January 2007
http://www.nice.org.uk/guidance/TA115
NICE guidance documents for healthcare professionals, patients, carers and the public

Methadone and buprenorphine for managing opioid dependence / NICE, January 2007
http://www.nice.org.uk/guidance/TA114
NICE guidance documents for healthcare professionals, patients, carers and the public