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Rare But Serious Side Effect of Heartburn Drugs

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Acute Interstitial Nephritis related image Scott Griessel-Creatista/PhotoSpin

Prilosec, Nexium, Prevacid, and other proton pump inhibitor drugs have been reported as the cause of acute interstitial nephritis in 150 cases worldwide. This is rare enough that doctors are often unaware of the possibility. However, it is very important to recognize the problem quickly.

Acute interstitual nephritis can lead to life-threatening kidney failure if it is not treated properly, and the treatment can be as simple as discontinuing the drug that caused the reaction.

The symptoms of acute interstitial nephritis (AIN) are decreased urine production, malaise, anorexia, nausea, and vomiting. Many types of kidney damage can produce the same symptoms, so a renal biopsy is the standard diagnostic test. Drug-induced nephritis looks like an infection, with edema (fluid) and an infiltrate of white blood cells. Infections are characterized by large numbers of neutrophils, while mononuclear cells are predominant in drug reactions. The causes of AIN include drug hypersensitivity, infections and autoimmune disease. Other drugs that may cause AIN include antibiotics, diuretics and non-steroidal anti-inflammatories.

In the case reports provided by a team in the Netherlands, several patients were taking multiple drugs. The symptoms of AIN began anywhere from a few hours up to 4 months after the start of the drug that caused the problem.

Five drugs in the proton pump inhibitor class have been reported as causes of AIN. These are:
1. Omeprazole (brand names Prilosec, Losec, Zegerid): 109 reports
2. Lansoprazole (brand name Prevacid): 18 reports
3. Pantoprazole (brand name Protonix): 15 reports
4. Rabeprazol (brand names Rabecid, Aciphex): 10 reports
5. Esomeprazole (brand name Nexium, Esotrex): 7 reports

Kidney damage due to drugs is a growing problem worldwide as the population ages and more drugs are available. All serious drug problems in the United States should be reported to the FDA. You can do this as a consumer at the MedWatch web site, http://www.fda.gov/Safety/MedWatch/HowToReport/default.htm
Or your doctor can do the reporting for you.

Add a Comment2 Comments

There seems to be remarkable variation in how different people react to any drug.

September 14, 2009 - 8:06am
EmpowHER Guest

I've been taking Prevacid for about 10 years. After trying ALL those others, thats the only one that stops the burning and nausea. I have had no problems with it (except the price)

September 14, 2009 - 7:29am
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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.

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