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Welcome to the Cardiff Toxicology Laboratories


The Cardiff Toxicology Laboratories are based within Cardiff and Vale University Health Board, one of the largest NHS organisations in the UK. Accredited according to CPA (Clinical Pathology Accreditation) standards, the laboratories deliver analytical toxicology services to healthcare providers, research institutions and industry.

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.


***Note: As of 06.04.17 we are temporarily unable to analyse samples for thiopental due to instrument failure***


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 6 April 2017


Cardiff and Vale University Health Board