Drugs That Increase Blood Pressure (Vasopressors)


Phenylephrine - Phenylephrine commonly used in patients with low blood pressure that has been drug induced. This most commonly occurs with general anesthesia.

What are vasopressor drugs?

These drugs make blood vessels smaller and tighter. They are very powerful and are used only under close supervision.

Why is it given?

The doctor determines that the patient's blood pressure is too low and should be raised.

How long is it used?

Usually these drugs are used for short periods of time (hours or days).

Does it have side effects?

Side effects do occur. These drugs may make the heart use more oxygen than normal. Under certain circumstances they can narrow blood vessels too much and potentially harm body tissues by decreasing blood flow to a particular part of the body. Sometimes these drugs are associated with irregular heartbeats.