(e.g. D-amphetamine, Dexedrine)

Very little prescribing and no illicit manufacture means there is little barbiturate abuse now.

(e.g. Temazepam, Oxazepam, Valium)

Including Norbuprenorphine.

Including the metabolites that are strong indicators of consumption rather than passive or external contamination.

(e.g. Benzoylecgonine, Crack cocaine and cocaethylene)

An opiate occasionally abused by medical personnel.

Commonly cited as possibly assisting sexual assaults.

A club drug often taken by Ecstasy users, but also cited occasionally in possible drug-assisted assualts.

Most commonly abused in the 1960's but still today showing occasional 'spikes' of use in universities.

Commonly administered as a treatment for heroin addiction, testing can be used to ensure compliance with and/or success of treatment. Can also be misused.

Methamphetamines including 'Ecstasy' type drugs and methamphetamine (Crystal Meth)

Used for compliance monitoring in the treatment of heroin and alcohol addicitions.

For example Heroin, Morphine, Codeine and Dihydrocodeine

Most often accessed by people working in the medical and dental professions.

An opiate analgesic, it can be habit-forming, but this is not very common in the UK, although in the United States a recent medical journal reported seeing significant amounts of Tramadol addiction.