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Costochondritis and Tietze Syndrome »

What is costochondritis?

Costochondritis is a common form of inflammation of the cartilage where ribs attach to the breastbone, the sternum. The inflammation can involve multiple cartilage areas on both sides of the sternum but usually is on one side only.

The cause(s) of costochondritis is(are) not known and may involve several factors. Possible causes include heredity (genetic predisposition), viruses, and trauma (injury).

Costochondritis can be an independent condition by itself or sometimes be a feature of a more widespread disorder. Examples of illnesses that can feature costochondritis include fibromyalgia, psoriatic arthritis, ankylosing spondylitis reactive arthritis, and inflammatory bowel disease (such as ulcerative colitis and Crohn's disease).

What is the Tietze syndrome?

Costochondritis should be distinguished from Tietze syndrome, a condition involving the same area of the front of...

Read the Costochondritis and Tietze Syndrome article »

Naprelan

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NAPRELAN®
(naproxen sodium) Controlled-Release Tablets
Equivalent to 375 mg and 500 mg naproxen
NAPRELAN (naproxen sodium) Controlled Release Tablets, 375 mg and 500 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).
  • Naproxen as NAPRELAN® (naproxen sodium) 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 the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly people are at greater risk for serous gastrointestinal events. (See WARNINGS).

DRUG DESCRIPTION

NAPRELAN®* Tablets contain naproxen sodium, a member of the arylacetic acid group of nonsteroidal anti-inflammatory drugs (NSAIDs). NAPRELAN® (naproxen sodium) Tablets use the proprietary IPDAS®** (Intestinal Protective Drug Absorption System) technology. It is a rapidly disintegrating tablet system combining an immediate release component and a sustained release component of microparticles that are widely dispersed, allowing absorption of the active ingredient throughout the gastrointestinal (GI) tract, maintaining blood levels over 24 hours. The chemical name for naproxen sodium is 2-naphthaleneacetic acid, 6-methoxy-a-methyl-sodium salt, (S)- with the following structural formula:

Naproxen sodium
Molecular Formula: C14H13NaO3     Molecular Weight: 252.24

Naproxen sodium is an odorless crystalline powder, white to creamy in color. It is soluble in methanol and water. NAPRELAN® Tablets contain 412.5 mg or 550 mg of naproxen sodium, equivalent to 375 mg and 500 mg of naproxen and 37.5 mg and 50 mg sodium respectively. Each NAPRELAN® (naproxen sodium) Tablet also contains the following inactive ingredients: ammoniomethacrylate copolymer Type A, ammo-niomethacrylate copolymer Type B, citric acid, crospovidone, magnesium stearate, methacrylic acid copolymer Type A, microcrystalline cellulose, povidone, and talc. The tablet coating contains hydrox-ypropyl methylcellulose, polyethylene glycol, and titanium dioxide.

Last reviewed on RxList: 12/14/2007
This monograph has been modified to include the generic and brand name in many instances.

Additional Naprelan Information

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