<prompt> Mechanism of action of sodium nitrate in cyanide poisoning isProduces methamoglobinemiaIncreased blood flow to liverIncreased blood flow to heaIncreased blood flow to kidney  <response>: Sodium nitroprusside contain 1 Iron molecule coordinated to five cyanide molecules and one molecule of nitric oxide Prolonged use of Sodium nitroprusside may cause cyanide poisoning Detoxification occurs when cyanide and methamoglobin combines to form cyanomethamoglobin. Amyl nitrate and sodium nitrates enhance the oxidation of hemoglobin to methamoglobin, ensuring reliable mechanism of detoxification Refer kDT 6e p 527 