Magna LaboratoriesTM is UKAS Accredited Medical Laboratory No. 8321


We are specialists at providing a high quality and efficient service for clozapine treatment providers

Here at Magna Labs, we can provide a high quality, seamless clozapine service, thanks to our interface with the Zaponex Treatment Access System (ZTAS), and its essential wrap-around services designed to enhanced patient safety. These services include...


Clozapine Full Blood Count

Regular FBC testing for clozapine patients is a Medicines and Healthcare products Regulatory Agency (MHRA) requirement for all patients receiving clozapine treatment.

We provide Full Blood Count (FBC) monitoring on behalf of our sister company Leyden Delta. Our clozapine FBCs are turned around on the day of receipt.


Clozapine Plasma Levels (TDM)

Clozapine plasma levels are widely used to support the management of patients. The Medicines and Healthcare Regulatory Agency (MHRA) advises clozapine level monitoring in certain clinical situations such as:

Suspected toxicity

Changes in smoking habits

Pneumonia or other serious infection

Suspected drug-to-drug interactions

Magna’s clozapine plasma level service is available to all clozapine treatment providers, regardless of clozapine brand

Whilst we state a turn around time of 3 working days from receipt of the sample, the result is ready on the next working day in around 85% of cases


Here at Magna labs, we aim to provide additional convenience for you and your patients

For customers using our clozapine ZTAS service, it is now possible to obtain both clozapine FBC and plasma level results from the same blood sample!

We may also be able to provide a free courier collection service for FBC and plasma level samples. Please contact us to discuss your clinic’s individual needs

Therapeutic Drug Monitoring (TDM)

At Magna labs, we provide therapeutic drug monitoring for a range of non-clozapine antipsychotic medications.

Therapeutic drug monitoring is only required for a relatively small number of drugs, especially those with a narrow therapeutic index. However, for these drugs, TDM is essential for ensuring the drug achieves its maximum efficacy as well as avoiding adverse drug reactions (ADRs).