phenylephrine-injection, Neo-Synephrine (cont.)
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.
DRUG INTERACTIONS: Tell your doctor of all nonprescription and prescription medication you may use, especially of: phenothiazines (e.g., chlorpromazine), beta-blockers (e.g., propranolol), MAO inhibitors (e.g., furazolidone, linezolid, moclobemide, phenelzine, procarbazine, selegiline), tricyclic antidepressants (e.g., amitriptyline), guanethidine, methyldopa, alpha blockers (e.g., prazosin, doxazosin), atropine, certain ergots (e.g., ergonovine), "water pills" (diuretics), drugs hastening childbirth (oxytocics), rauwolfia alkaloids (e.g., reserpine), sympathomimetics (adrenaline-like drugs such as epinephrine). Do not start or stop any medicine without doctor or pharmacist approval.
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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