phenylephrine-injection, Neo-Synephrine
GENERIC NAME: PHENYLEPHRINE - INJECTION (fen-ill-EFF-rin)
BRAND NAME(S): Neo-Synephrine
Medication Uses | Other Uses | How To Use | Side Effects | Precautions | Drug Interactions | Overdose | Notes | Missed Dose | Storage
USES: This medication is used to maintain blood pressure in conditions where the pressure is low (e.g., shock, anesthesia). It is also used to prolong anesthesia, or to treat certain heart rhythm problems (PSVT).
OTHER USES: This drug may also be used for painful, prolonged erections in men (priapism).
HOW TO USE: This medication is given by vein (IV), into a muscle (IM) or under the skin (SC) as directed. The dilution and dose depend on the condition treated and how much fluid can be safely given. Make sure needles and any medical supplies are stored safely and disposed of properly.
SIDE EFFECTS: Headache, nausea, or vomiting may occur. If these effects persist or worsen, notify your doctor promptly. Unlikely but report promptly: chest pain, fast/slow/irregular heartbeat, dizziness, mental/mood changes, convulsions, tingling, or numb hands/feet, pain/redness at the injection site. In the unlikely event you have a serious allergic reaction to this drug, seek immediate medical attention. Symptoms of a serious allergic reaction include: rash, itching, swelling, severe dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.
PRECAUTIONS: Tell your doctor your medical history, including: allergies (such as a sulfite allergy), severe high blood pressure, heart/blood vessel disease, blood clots, asthma, liver disease, intestinal problems, thyroid disease (hyperthyroidism). This medication may contain sulfites, which infrequently cause allergic reactions, especially in asthmatics. Consult your doctor or pharmacist. Caution is advised when this drug is used in the elderly as this group may be more sensitive to phenylephrine effects. This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. It is not known whether this drug is excreted into breast milk. Because of the potential risk to the infant, breast-feeding while using this drug is not recommended. Consult your doctor before breast-feeding.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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