Nalfon (Fenoprofen Calcium) Drug Information: Description, User Reviews, Drug Side Effects, Interactions

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May 26, 2012

Nalfon

Ankylosing Spondylitis »

Ankylosing spondylitis facts

Ankylosing spondylitis belongs to a group of arthritis conditions which tend to cause chronic inflammation of the spine (spondyloarthropathies).
Ankylosing spondylitis affects males two to three times more commonly than females.
Ankylosing spondylitis is a cause of back pain in adolescents and young adults.
The tendency to develop ankylosing spondylitis is genetically inherited.
The HLA-B27 gene can be detected in the blood of most patients with ankylosing spondylitis.
Ankylosing spondylitis can also affect the eyes, heart, lungs, and occasionally the kidneys.
The optimal treatment of ankylosing spondylitis involves medications that reduce inflammation or suppress immunity, physical therapy, and exercise.

What is ankylosing spondylitis?

Ankylosing spondylitis is a form of chronic inflammat...

Read the Ankylosing Spondylitis article »

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Nalfon

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NALFON®
(fenoprofen calcium) Capsules, USP 200 mg and 400 mg

Cardiovascular Risk

NSAIDs may cause an increased risk of serious cardiovascular thrombotic events, myocardial infarction, and stroke, which can be fatal. This risk may increase with duration of use. Patients with cardiovascular disease or risk factors for cardiovascular disease may be at greater risk (See WARNINGS).
Nalfon® (fenoprofen calcium) is contraindicated for the treatment of peri-operative pain in the setting of coronary artery bypass graft (CABG) surgery (see WARNINGS).

Gastrointestinal Risk

NSAIDs cause an increased risk of serious gastrointestinal adverse events including bleeding, ulceration, and perforation of stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients are at greater risk for serious gastrointestinal events (see WARNINGS).

DRUG DESCRIPTION

Nalfon® (fenoprofen calcium capsules, USP) is a nonsteroidal, anti-inflammatory, antiarthritic drug. Nalfon capsules contain fenoprofen calcium as the dihydrate in an amount equivalent to 200 mg (0.826 mmol) or 400 mg (1.65 mmol) of fenoprofen. The 200 mg capsules contain cellulose, gelatin, iron oxides, silicone, titanium dioxide, and other inactive ingredients. The 400 mg capsules contain gelatin, sodium lauryl sulfate, iron oxide yellow, FD&C Blue 1, titanium dioxide, FD&C Red 40, crospovidone, talc, and magnesium stearate. Chemically, Nalfon (fenoprofen calcium) is an arylacetic acid derivative.

The structural formula is as follows:

Nalfon® (fenoprofen calcium) structural formula illustration

Benzeneacetic acid, α-methyl-3-phenoxy-,
calcium salt dihydrate, (±)-

Nalfon (fenoprofen calcium) is a white crystalline powder that has the structural formula C₃₀H₂₆Ca0₆•2H₂0 representing a molecular weight of 558.65. At 25°C, it dissolves to a 15 mg/mL solution in alcohol (95%). It is slightly soluble in water and insoluble in benzene.

The pKa of Nalfon (fenoprofen calcium) is a 4.5 at 25°C.

What are the possible side effects of fenoprofen (Nalfon)?

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;

Read All Potential Side Effects and See Pictures of Nalfon »

What are the precautions when taking fenoprofen calcium (Nalfon)?

Before taking fenoprofen, tell your doctor or pharmacist if you are allergic to it; or to aspirin or other NSAIDs (e.g., ibuprofen, naproxen, celecoxib); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: severe kidney disease, aspirin-sensitive asthma (a history of worsening breathing with runny/stuffy nose after taking aspirin or other NSAIDs), recent heart bypass surgery (CABG).

Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, liver...

Read All Potential Precautions of Nalfon »

Last reviewed on RxList: 8/4/2009
This monograph has been modified to include the generic and brand name in many instances.