Vasopressor

Vasopressors are a group of medicines that contract (tighten) blood vessels and increase blood pressure. They are used in various clinical settings, such as in the treatment of hypotension (low blood pressure) and shock.

Mechanism of action

Vasopressors work by stimulating the muscles in the walls of small arteries and veins to tighten up (contract). This contraction narrows the blood vessels, which increases the pressure inside the vessels, thereby raising blood pressure.

Types of Vasopressors

There are several types of vasopressors, including:

• Epinephrine (Adrenaline)
• Norepinephrine (Noradrenaline)
• Dopamine
• Vasopressin
• Phenylephrine

Each of these has a slightly different effect on the body, but all work to increase blood pressure.

Uses

Vasopressors are used in a variety of clinical settings. They are most commonly used to treat low blood pressure and shock. In these situations, they can help to maintain blood flow to vital organs such as the heart and brain.

Side effects

Like all medications, vasopressors can have side effects. These can include:

• Rapid heart rate
• Irregular heart rhythms
• Chest pain
• Shortness of breath
• Nausea and vomiting

See also

• Inotrope
• Cardiotonic agent

References

Vasopressor Resources
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