Clonazepam (brand name Rivotril) is a long-acting benzodiazepine used for anticonvulsant therapy in patients who have previously responded to diazepam, but who are no longer responsive within non-toxic levels.
Fluoride oxalate (grey top), on ice rush to laboratory
1 mL pre-dose trough sample
Up to 6 weeks
Requires prompt separation and freezing.
Not currently performed in house; this is a referred test.