1.Heroin– Popular street names include smack, skag, and junk. Street price is between £10-20/bag, 300,000 UK users and kills 700 people a year in the UK.

2.Cocaine– Often referred to as snow, flake, coke, and blow. Street price is £30-60/g powder and there are 780,000 UK users. There are 214 UK deaths a year.

3.Barbiturates– Popular slang names include yellow jackets, reds, blues, Amy’s, and rainbows. Street price is £1-2/tablet and they kill 20 a year in the UK.

4.Street Methadone– Street price is about £10/100ml, there are about 33,000 illegal UK users and 295 a year die.

5.Alcohol– Street price starts at £1 and a huge 40 million in the UK use the drug which is responsible for 40,000 deaths each year.

6.Ketamine– A powerful hallucinogen, often referred to as Special K. Ranging from £15-40/g Special K has about 100,000 users and there is on averag one death a year in the UK

7.Benzodiazepines– A family of sedative drugs. The 100,000 UK users pay about £1 for 4 x 5mg capsules and 406 people in the UK die each year.

8.Amphetamines– Known as billy or speed. Street price from £8-12/wrap, UK users: 430,000 and there are 35 UK deaths a year.

9.Tobacco– Easily available in shops, tobacco costs about £5 and there are 10m UK users. A massive 114,000 die each year.

10.Buprenorphine– Also called bupe or subbies. Street price is £2 for 4 x 8mg capsules and the nummber of users in the UK is unknown. There are about 2 UK deaths a year.

Source: The Lancet and the BBC