Adfam - works to support families affected by drugs and alcohol. They provide direct support to people through publications, prison visitors' centres, and outreach work.

Alcoholics Anonymous - the leading national organisation for people who have problems with alcohol or are addicted. They have a confidential helpline: 0845 769 7555.

Release - offers a range of specialist services to professionals and the public concerning drugs and the law. They give free and confidential advice to drug users, their families and friends, and others about legal issues relating to drugs. Their helpline number is 0856 4500 215.

Frank - Frank offers free, confidential advice, 24 hours a day. You can e-mail them, or phone 0300 123 6600. You can talk to Frank in 120 languages. There's a very useful "A-Z of drugs" on their website.

Al-Anon Family Groups - support groups that are for, and run by, friends and relatives of alcoholics. Group meetings take place all over London; visit their website for a directory. Anyone who has been affected by someone else's drinking is welcome to attend.