Generic Name: fenoprofen (fen oh PROE fen)
Brand Name: Nalfon
What is Nalfon (fenoprofen)?
Fenoprofen is in a group of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). Fenoprofen works by reducing hormones that cause inflammation and pain in the body.
Fenoprofen is used to treat pain or inflammation caused by arthritis.
Fenoprofen may also be used for other purposes not listed in this medication guide.
What is the most important information I should know about Nalfon (fenoprofen)?
This medicine can increase your risk of life-threatening heart or circulation problems, including heart attack or stroke. Do not use this medicine just before or after having heart bypass surgery (also called coronary artery bypass graft, or CABG).
Seek emergency medical help if you have symptoms of heart or circulation problems, such as chest pain, weakness, shortness of breath, slurred speech, or problems with vision or balance.
This medicine can also increase your risk of serious effects on the stomach or intestines, including bleeding or perforation (forming of a hole). These conditions can be fatal and gastrointestinal effects can occur without warning at any time while you are taking fenoprofen. Older adults may have an even greater risk of these serious gastrointestinal side effects.
Call your doctor at once if you have symptoms of bleeding in your stomach or intestines. This includes black, bloody, or tarry stools, or coughing up blood or vomit that looks like coffee grounds.
What should I discuss with my healthcare provider before taking Nalfon (fenoprofen)?
Taking an NSAID can increase your risk of life-threatening heart or circulation problems, including heart attack or stroke. This risk will increase the longer you use an NSAID. Do not use this medicine just before or after having heart bypass surgery (also called coronary artery bypass graft, or CABG).
NSAIDs can also increase your risk of serious effects on the stomach or intestines, including bleeding or perforation (forming of a hole). These conditions can be fatal and gastrointestinal effects can occur without warning at any time while you are taking an NSAID. Older adults may have an even greater risk of these serious gastrointestinal side effects.
Do not use this medication if you are allergic to fenoprofen, or if you have:
severe kidney disease;
a stomach ulcer or inflammatory bowel disease; or
a history of allergic reaction to aspirin or other NSAIDs.
If you have any of these other conditions, you may need a dose adjustment or special tests to safely take fenoprofen:
a history of heart attack, stroke, or blood clot;
heart disease, congestive heart failure, high blood pressure;
a history of stomach ulcers or bleeding, bowel problems, diverticulosis;
liver or kidney disease;
polyps in your nose; or
if you smoke.
FDA pregnancy category C. It is not known whether fenoprofen is harmful to an unborn baby. Before taking this medication, tell your doctor if you are pregnant or plan to become pregnant during treatment. Taking fenoprofen during the last 3 months of pregnancy may result in birth defects. Do not take fenoprofen during pregnancy unless your doctor has told you to.
Fenoprofen can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.
Do not give this medicine to a child younger than 14 years old without the advice of a doctor.
How should I take Nalfon (fenoprofen)?
Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label. The maximum amount of fenoprofen for adults is 3 grams (3000 mg) per day. Know the amount of fenoprofen in the specific product you are taking.
If you take fenoprofen for a long period of time, your doctor may want to check you on a regular basis to make sure this medication is not causing harmful effects. Do not miss any scheduled visits to your doctor.
This medication can cause you to have unusual results with certain medical tests. Tell any doctor who treats you that you are using fenoprofen.
Store fenoprofen at room temperature, away from moisture, heat, and light.
What happens if I miss a dose?
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the medicine at your next regularly scheduled time. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention if you think you have used too much of this medicine.
Overdose symptoms may include nausea, vomiting, confusion, dizziness, drowsiness, black or bloody stools, coughing up blood, fever, urinating less than usual or not at all, shallow breathing, fainting, or coma.
What should I avoid while taking Nalfon (fenoprofen)?
Do not use any other over-the-counter cold, allergy, or pain medication without first asking your doctor or pharmacist. Many medicines available over the counter contain medicines similar to fenoprofen (such as aspirin, ibuprofen, ketoprofen, or naproxen). If you take certain products together you may accidentally take too much of this type of medication. Read the label of any other medicine you are using to see if it contains aspirin, ibuprofen, ketoprofen, or naproxen.
Do not drink alcohol while taking fenoprofen. Alcohol can increase the risk of stomach bleeding.
Fenoprofen can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.
Nalfon (fenoprofen) 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.
Stop taking fenoprofen and seek medical attention or call your doctor at once if you have any of these serious side effects:
chest pain, weakness, shortness of breath, slurred speech, problems with vision or balance;
black, bloody, or tarry stools, coughing up blood or vomit that looks like coffee grounds;
confusion, tremors or shaking;
urinating less than usual or not at all;
pain, burning, or bleeding when you urinate;
nausea, stomach pain, low fever, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
fever, sore throat, and headache with a severe blistering, peeling, and red skin rash; or
bruising, severe tingling, numbness, pain, muscle weakness.
Less serious side effects may include:
upset stomach, mild heartburn or stomach pain, diarrhea, constipation; bloating, gas;
dizziness, headache, nervousness;
skin itching or rash;
increased sweating, runny nose;
blurred vision; or
ringing in your ears.
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.
See also: Side effects (in more detail)
What other drugs will affect Nalfon (fenoprofen)?
Tell your doctor if you are taking an antidepressant such as citalopram (Celexa), duloxetine (Cymbalta), escitalopram (Lexapro), fluoxetine (Prozac, Sarafem, Symbyax), fluvoxamine (Luvox), paroxetine (Paxil), sertraline (Zoloft), or venlafaxine (Effexor). Taking any of these drugs with fenoprofen may cause you to bruise or bleed easily.
Before taking fenoprofen, tell your doctor if you are taking:
cyclosporine (Gengraf, Neoral, Sandimmune);
lithium (Eskalith, Lithobid);
diuretics (water pills) such as furosemide (Lasix);
aspirin or salicylates such as Doan's Pills, Dolobid, and others;
a blood thinner such as warfarin (Coumadin);
steroids (prednisone and others);
seizure medication such as phenobarbital (Luminal, Solfoton) or phenytoin (Dilantin);
a sulfa drug such as Bactrim or Septra;
oral diabetes medications such as glipizide (Glucotrol), glimepiride (Amaryl, Duetact, Avandaryl), and others; or
aspirin or other NSAIDs (non-steroidal anti-inflammatory drugs) such as ibuprofen (Motrin, Advil), diclofenac (Cataflam, Voltaren), etodolac (Lodine), indomethacin (Indocin), nabumetone (Relafen), naproxen (Aleve, Naprosyn), meloxicam (Mobic), piroxicam (Feldene), and others.
This list is not complete and there may be other drugs that can interact with fenoprofen. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.
More about Nalfon (fenoprofen)
Related treatment guides
Where can I get more information?
- Your pharmacist can provide more information about fenoprofen.
- Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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Copyright 1996-2012 Cerner Multum, Inc. Version: 9.02. Revision Date: 2010-12-15, 5:01:39 PM.