药物信息为NITROPRESS (Sodium Nitroprusside Injection) (Hospira, Inc.): DESCRIPTION

Sodium nitroprusside is disodium pentacyanonitrosylferrate(2-) dihydrate, an inorganic hypotensive agent whose structural formula is

whose molecular formula is Na₂[Fe(CN)₅NO]• 2H₂O, and whose molecular weight is 297.95. Dry sodium nitroprusside is a reddish-brown powder, soluble in water. In an aqueous solution infused intravenously, sodium nitroprusside is a rapid-acting vasodilator, active on both arteries and veins.

Sodium nitroprusside solution is rapidly degraded by trace contaminants, often with resulting color changes. (See DOSAGE AND ADMINISTRATION section.) The solution is also sensitive to certain wavelengths of light, and it must be protected from light in clinical use.

NITROPRESS (Sodium Nitroprusside Injection) is available as:

50 mg Fliptop Vial − Each 2 mL vial contains the equivalent of 50 mg sodium nitroprusside dihydrate in sterile water for injection.