Imperial Collage Healthcare


Test Background
Clozapine (brand name Clozaril) is an atypical antipsychotic drug used to treat schizophrenia resistant to conventional antipsychotics. Clozapine is generally restricted due to its potential to induce acute agranulocytosis.

Clinical Indications
Therapeutic drug monitoring of all patients registered with the Clozaril Patient Monitoring Service.

Reference Range
See report

Sample Required
EDTA (lavender top) preferred, SST (gold top) or serum (red top) accepted

Sample Volume
1 mL pre-dose trough sample

Turnaround Time
Up to 6 weeks

Requesting restricted to mental health team only. Not currently performed in house; this is a referred test.

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