Do not use phenylephrine nasal if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), or tranylcypromine (Parnate) in the last 14 days. A dangerous drug interaction could occur resulting in serious side effects.
Before using this medication, tell your doctor if you have
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high blood pressure;
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heart disease, hardening of the arteries, or irregular heartbeats;
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thyroid problems;
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diabetes;
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glaucoma or increased pressure in the eye(s);
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an enlarged prostate or difficulty urinating; or
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liver disease; or
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kidney disease.
You may not be able to use phenylephrine nasal, or you may require a dosage adjustment or special monitoring during treatment if you have any of the conditions listed above.
It is not known whether phenylephrine nasal will harm an unborn baby. Do not use this medication without first talking to your doctor if you are pregnant.
Phenylephrine may pass into breast milk and affect a nursing baby. Do not use this medication without first talking to your doctor if you are breast-feeding a baby.
If you are over 60 years of age, you may be more likely to experience side effects from phenylephrine nasal. You may require a lower dose of this medication.
Use phenylephrine nasal exactly as directed by your doctor, or follow the instructions that accompany the package. If you do not understand these directions, ask your pharmacist, nurse, or doctor to explain them to you.
To apply the nasal spray, keep your head upright, spray and simultaneously breathe in deeply through the nose.
To apply the nasal drops, lie on a bed on your back with your head hanging over the edge. Insert the drops and remain in this position for several minutes. Gently turn your head from side to side.
Do not allow the tip of the container to touch the inside of the nose or any other surface. Contact between the applicator and nasal tissues may spread the infection. Also, to prevent the spread of infection, do not share this medication with anyone else.
Do not use more of this medication than is recommended on the package or by your doctor. Too much medication could be harmful.
Do not use phenylephrine nasal for longer than 3 to 5 days. Longer use could damage the nasal tissue and lead to chronic congestion. If your symptoms do not improve, see your doctor.
Discard the medication bottle after use. Do not save it for reuse.
Store phenylephrine nasal at room temperature away from moisture and heat.
Use the missed dose as soon as you remember. However, if it is almost time for the next dose,
skip the dose you missed and use only the next regularly scheduled dose.
If you experience any of the following serious side effects, stop using phenylephrine nasal and seek emergency medical attention:
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an allergic reaction (difficulty breathing; closing of your throat; swelling of your lips, tongue, or face; or hives);
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seizures;
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unusual behavior or hallucinations; or
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an irregular or fast heartbeat.
More commonly, you may experience some sneezing, burning, stinging, dryness, or irritation of the nose. These side effects are usually mild and temporary.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or especially bothersome.
Do not use phenylephrine for longer than 3 to 5 days. Longer use could damage the nasal tissue and lead to chronic congestion. If your symptoms do not improve, see your doctor.
Do not use more of this medication than is recommended on the package or by your doctor. Too much medication could be harmful.
Do not use more of this medication than is recommended on the package or by your doctor. Too much medication could be harmful.
Do not use phenylephrine nasal if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), or tranylcypromine (Parnate) in the last 14 days. A dangerous drug interaction could occur resulting in serious side effects.
Although drug interactions between nasal medications and drugs taken by mouth are not expected, they can occur. Talk to your doctor before using phenylephrine nasal if you take any other medications.
Drugs other than those listed here may also interact with phenylephrine nasal. Talk to your doctor or pharmacist before taking any prescription or over-the-counter medicines, including herbal products.
Seek emergency medical attention.
Symptoms of a phenylephrine nasal overdose include extreme tiredness, sweating, dizziness, a slow heartbeat, and coma.