Description General description N-Desmethylclozapine is an active metabolite of Clozapine, an atypical antipsychotic drug used for treatment of schizophrenia. Clozapine is sold under the trade names Clozaril® and FrazaClo in the US. This Certified Snap-N-Spike® Solution is suitable for use in urine drug testing, clinical toxicology, forensic analysis, and clinical monitoring by LC-MS/MS or GC/MS. Legal Information CERILLIANT is a registered trademark of Cerilliant Corporation Clozaril is a registered trademark of Sandoz, Inc. Snap-N-Shoot is a registered trademark of Cerilliant Corporation Snap-N-Spike is a registered trademark of Cerilliant Corporation