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