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Neofrin
Generic name: phenylephrine ophthalmic
Brand names: Altafrin, Mydfrin, Neofrin
What is Neofrin?
Phenylephrine is a decongestant that reduces the size of blood vessels.
Neofrin (for the eyes) is used to relieve eye redness, dryness, burning, and irritation from wind, sun, and other irritants.
Prescription-strength Neofrin is used to narrow blood vessels in the eye and to enlarge (dilate) the pupil for conditions like glaucoma, before surgery, and before eye examinations.
Neofrin may also be used for reasons not mentioned in this medication guide.
This section was rewritten for readability and reviewed for meaning.
Warnings
You should not use Neofrin if you have narrow-angle glaucoma.
This section was rewritten for readability and reviewed for meaning.
Before taking this medicine
You should not use Neofrin if you are allergic to it, or if you have narrow-angle glaucoma.
Do not use Neofrin without a doctor's advice if you have:
- an eye infection;
- an eye injury; or
- if you have recently had eye surgery.
Any of these conditions could cause your eyes to absorb Neofrin into your body, which could lead to dangerous effects on the heart.
Ask a doctor or pharmacist if it is safe for you to use Neofrin if you have other medical conditions, especially:
- high blood pressure;
- any type of heart condition;
- coronary artery disease (hardened arteries); or
- asthma or sulfite allergy.
FDA pregnancy category C. It is not known whether Neofrin will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medicine.
It is not known whether phenylephrine ophthalmic passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.
Do not give this medicine to a child without medical advice.
This section was rewritten for readability and reviewed for meaning.
Neofrin side effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Although the risk of serious side effects is low when Neofrin is used in the eyes, side effects can happen if the medicine gets into your bloodstream. Stop using this medicine and call your doctor right away if you have:
- fast or irregular heart rate;
- sweating, tremors;
- pale skin, feeling light-headed;
- severe headache, ringing in your ears, anxiety, shortness of breath; or
- chest pain or pressure, pain spreading to your jaw or shoulder.
Less serious side effects may happen more often, and you might not have any at all.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
This section was rewritten for readability and reviewed for meaning.
How should I use Neofrin?
Use exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.
Wash your hands before using the eye drops.
To apply the eye drops:
- Tilt your head back slightly and pull down your lower eyelid to create a small pocket. Hold the dropper above the eye with the tip down. Look up and away from the dropper and squeeze out a drop.
- Close your eyes for 2 or 3 minutes with your head tipped down, without blinking or squinting. Gently press your finger to the inside corner of the eye for 2 to 3 minutes, to keep the liquid from draining into your tear duct.
- Use only the number of drops your doctor has prescribed, or as recommended on the medicine label. If you use more than one drop, wait about 5 minutes between drops.
- Wait at least 10 minutes before using any other eye drops your doctor has prescribed.
Do not touch the tip of the eye dropper or place it directly on your eye. A contaminated dropper can infect your eye, which could lead to serious vision problems.
Do not use the eye drops if the liquid has changed colors or has particles in it. Call your pharmacist for new medicine.
Your blood pressure may need to be checked while you are using Neofrin.
Do not use this medicine for longer than 3 days. Call your doctor if your symptoms do not improve, or if they get worse while using Neofrin.
Long-term use of phenylephrine ophthalmic may damage the blood vessels (veins and arteries) in the eyes.
Store at room temperature away from moisture, heat, and light. Keep the bottle tightly closed when not in use.
What happens if I miss a dose?
Apply the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose. Do not use extra medicine to make up for the missed dose.
This section was rewritten for readability and reviewed for meaning.
What happens if I overdose?
An overdose of Neofrin is not expected to be dangerous. Seek emergency medical attention or call the Poison Help line at 1-800-222-1222 if anyone has accidentally swallowed the medication.
Do not use Neofrin while wearing contact lenses. Neofrin may contain a preservative that can discolor soft contact lenses. Wait at least 15 minutes after using this medicine before putting in your contact lenses.
This medicine may cause blurred vision and may impair your reactions. Be careful if you drive or do anything that requires you to be able to see clearly.
This section was rewritten for readability and reviewed for meaning.
What other drugs will affect Neofrin?
Tell your doctor if you have used an MAO inhibitor in the past 21 days. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others.
Other drugs may interact with phenylephrine ophthalmic, including prescription and over-the-counter medicines, vitamins, and herbal products. Inform each of your health care providers about all the medicines you are currently using and any medicine you start or stop using.
This section was rewritten for readability and reviewed for meaning.
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Content is provided for education and is not medical advice. See our medical disclaimer.