Nitropress is an injectable prescription medication used to treat hypertension and congestive heart failure.

Nitropress Overview


Nitropress is a prescription medication used to treat high blood pressure (hypertention) and congestive heart failure.

Nitropress belongs to a group of drugs called antihypertensives. These work by relaxing smooth muscle of blood vessels which causes dilation of arteries and veins. This dilation leads to lower blood pressure.

This medication is available in an injectable form to be given directly into a vein by a healthcare professional.

Common side effects of Nitropress include excessively low blood pressure (hypotension), cyanide toxicity, and injection site irritation.

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Nitropress Cautionary Labels


Uses of Nitropress

Nitropress is a prescription medication used to treat hypertensive crisis and acute congestive heart failure.



For more information on this medication choose from the list of selections below.

Nitropress Drug Class

Nitropress is part of the drug class:

Side Effects of Nitropress

Serious side effects have been reported with Nitropress. See the “Nitropress Precautions” section.

Common side effects of Nitropress include:

  • Low blood pressure
  • Increase/decrease in heart rate
  • Palpitations
  • Injection site irritation
  • Rash
  • Sweating
  • Confusion
  • Dizziness

This is not a complete list of Nitropress side effects. Ask your doctor or pharmacist for more information.

Tell your doctor if you have any side effect that bothers you or that does not go away.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Nitropress FDA Warning

Nitropress is not suitable for direct injection; the reconstituted solution must be further diluted in sterile 5% dextrose injection before infusion. Nitropress can cause precipitous decreases in blood pressure; monitor blood pressure continuously while patient is on therapy. Nitropress can cause cyanide toxicity which can be lethal. Infusion at the maximum dose rate (10 mcg/kg/min) should never last more than 10 minutes. Monitor acid-base balance and venous oxygen concentration while on therapy as these tests may indicate cyanide toxicity.