Phenylephrine injection most commonly treats critically low blood pressure during surgery or other hospital procedures. Your healthcare provider gives it to you in a vein.
PHENYLEPHRINE (fen il EF rin) can treat a variety of conditions. It is often used during surgery. This medicine may used to treat very low blood pressure or serious heart problems such as irregular heartbeat.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
COMMON BRAND NAME(S): Biorphen, Neo-Synephrine, Vazculep
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They need to know if you have any of the following conditions:
•head injury or disease
•high blood pressure
•an unusual or allergic reaction to phenylephrine, sulfites, other medicines, foods, dyes, or preservatives
•pregnant or trying to get pregnant
This medicine is for injection or infusion into a vein, or injection into a muscle or under the skin. It is given by a health care professional in a hospital or clinic setting.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
This does not apply.
Do not take this medicine with any of the following medications:
•ergot alkaloids like dihydroergotamine, ergonovine, ergotamine, methylergonovine
•MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate
This medicine may also interact with the following medications:
•medicines for mental depression
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
Your condition will be monitored carefully while you are receiving this medicine.
Side effects that you should report to your doctor or health care professional as soon as possible:
•allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
•fast, irregular heartbeat
•feeling faint or lightheaded, falls
•pain, tingling, numbness in the hands or feet
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
This drug is given in a hospital or clinic and will not be stored at home.
NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.
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Note: Introduction and Frequently Asked Questions written and medically approved by Cleveland Clinic professionals.