As of 25th March 2025 we will be introducing a new assay for drugs of abuse which will cover a wider repertoire of drugs and will now include some prescription drugs that are commonly abused.
The new assay will use a high-resolution accurate mass spectrometer to detect the following drugs:
|
Drug Class |
Drugs |
|
Opiates and opioids |
Buprenorphine (+ metabolite), Codeine, Dihydrocodeine, Fentanyl (+ metabolite), Methadone (+ metabolite), 6-Monoacetylmorphine, Morphine, Oxycodone, Papaverine, Pethidine (+ metabolite) and Tramadol (+ metabolite). |
|
Benzodiazepines |
Alprazolam (+ metabolite), Bromazolam, Chlordiazepoxide (+ metabolite), Clobazam (+ metabolite), Clonazepam (+ metabolite), Diazepam (+ metabolite), Etizolam, Flualprazolam, Flubromazolam, Flunitrazepam (+ metabolite), Lorazepam, Midazolam (+ metabolite), Nitrazepam (+ metabolite) and Temazepam (+ metabolite). |
|
Amphetamines |
Amphetamine, 2C-B, 2C-I, MDEA, MDMA (Ecstasy) (+ metabolite), MDPV, Mephedrone, Methamphetamine, Methylphenidate and Ritalanic acid. |
|
Other |
Cocaine (+ metabolite), Gabapentin, Ketamine (+ metabolite), Pregabalin, Promethazine, Quetiapine, Tetrahydrocannabinol metabolite (cannabis metabolite), Zaleplon, Zolpidem and Zopiclone. |
Positive results represent concentrations of drugs above the European Workplace Testing Thresholds except for benzodiazepines. We have lowered the cut-off for this class of drug to 10ug/L to increase the detection of benzodiazepines.
Bromazolam, Etizolam, Flualprazolam, Flubromazolam, THC-COOH glucuronide, Buprenorphine glucuronide and Norbuprenorphine glucuronide will be qualitative only.
We do not screen for barbituates, propoxyphenes, phencyclidine, LSD, or methaqualones.
Drugs without a cut-off have been assigned one based on chemically similar compounds.
If you have any queries regarding this please contact the duty toxicologist at
