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Welcome to the Cardiff Toxicology Laboratories


The Cardiff Toxicology Laboratories are based within the Medical Biochemistry and Immunology department at Cardiff and Vale University Health Board, one of the largest NHS organisations in the UK. The department is fully accredited to ISO 15189 by the United Kingdon Accreditation Service (UKAS).

Our accreditation is limited to those activities described on our UKAS schedule of accreditation

Laboratory operating hours are 08:30-17:00 Monday to Friday.

Please note that as of 21st January 2017 the laboratory does not offer a routine weekend service. Please call to discuss if you have an urgent request for ethylene glycol, methanol, thiopental or paraquat.


The thiopental service offered at Toxicology, UHL will resume as of 01.09.17.
Please refer to the thiopental assay page for important information on availability and transport conditions.


***Temporary suspension of service for Methanol and Rifampicin. Please call the laboratory to discuss.***


On this site you will find the following information:



Discover the various analytical services offered by the Cardiff Toxicology Laboratories.


Browse the large number of analyses commonly undertaken by the Cardiff Toxicology Laboratories.


View information relating to specimen collection and transport.


View or download protocols and resources.

Contact us

View our contact details.


While we strive to maintain our stated turnaround times, low staffing levels are currently having an adverse effect on the service. Please accept our apologies if you are affected by this and be assured we are working to rectify this situation and return service delivery to normal.


Therapeuticsa and Toxicology Centre
Updated 8th December 2017


Cardiff and Vale University Health Board