The stability of sodium nitroprusside infusion during administration by motorized syringe-pump.

This study examined the stability of concentrated sodium nitroprusside infusions during administration by a motorized syringe-pump system. Sodium nitroprusside and the free-cyanide degradation product were determined in infusion samples collected over periods of up to 24 h. Measures which were taken to protect the delivery system from light, ensured satisfactory stability of the infusion for at least 12 h from the time of preparation.