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Reversing Painful Diabetic Neuropathy
David Mendosa Health Guide November 19, 2014


ēThe drugs that are approved to reduce the pain of diabetic peripheral neuropathy are expensive. But your doctor can prescribe much less costly drugs that might save you thousands of dollars and may work equally well.

No drugs do anything more than cut the pain. To reverse the neuropathy, you have to act.

A pair of articles that the American College of Physicians published in its November 4 issue of the Annals of Internal Medicine compares our choices and recommends our options. The first of these articles is a review of the ďPharmacologic Interventions for Painful Diabetic NeuropathyĒ by nine doctors, most of whom work at the Mayo Clinic in Rochester, Minnesota. The second article is an editorial, ďPainful Diabetic Neuropathy: Many Similarly Effective Therapies With Widely Dissimilar Costs,Ē by two doctors at the University of Michigan in Ann Arbor.

The review concluded that several different types of drugs can reduce the pain of peripheral neuropathy, but nobody knows which ones work best. The editorial took the analysis one step further: since the prices of these drugs are vastly different, start with those that cost less.

The lead author of the editorial, Brian C. Callaghan, M.D., sent me the full-text of both articles. ďBecause current evidence does not suggest that the effectiveness of these agents substantively differ,Ē he wrote, ďcost considerations should be a prominent part of cliniciansí decision making.Ē

According to drugstore.com, pregabalin (brand name Lyrica) is the most expensive, $2,279.76 per year. Duloxetine (brand name Cymbalta) follows at $2,051.88. Much less expensive alternatives are gablentin, $227.88 per year; amitriptyline, $155.88; and nortriptyline, $239.88. Capsaicin cream, which contains an extract of chili peppers, is also used to treat the pain of diabetic peripheral neuropathy. It is available without prescription for $169.88 per year.

The editorial did not include the cost of a fairly new drug, the long-acting narcotic pain reliever tapentadol ER (brand name Nucynta). You canít buy it through drugstore.com, but drugs.com quotes prices starting at $4,261.92 per year and going up to $6,953.52 at the highest dose.

Part of the cost problem is that the U.S. Food and Drug Administration has approved only three drugs for diabetic peripheral neuropathy. They are the anticonvulsant pregabalin (Lyrica), the antidepressant duloxetine (Cymbalta and generic versions), and tapentadol ER (Nucynta).

In early 2011 the American Academy of Neurology found strong evidence, a ďlevel AĒ recommendation, for doctors to prescribe one of these drugs, pregabalin (although this was prior to the FDAís approval of tapentadol).

But our doctors are allowed to prescribe other drugs for diabetic neuropathy and often do so. Thatís because as long as the FDA has approved a drug for one problem, doctors can prescribe it for other problems. The FDA regulates medicine, not doctors. Off-label drug use is both acceptable and common.
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If you have diabetes, you have a 50-50 chance of getting peripheral neuropathy. The pain that it causes is the immediate problem, and one of these drugs is likely to make that pain bearable.

For most people, questions of cost are not, of course, the big concern, since their health insurance will foot all of the bill except for a relatively small co-pay. The much bigger question is how you avoid the long-term consequences of untreated peripheral neuropathy.

Untreated neuropathy can cause ulcers that can lead to amputations. Pain medicine wonít prevent this from happening.

You might not feel heat, cold, or pain in your feet or hands. You might not be aware that you have a cut or sore on your foot. Ill-fitting shoes can also cause ulcers. Thatís the reason why you need to inspect your feet every day.

No drug can reverse this complication of diabetes. Only bringing your blood sugar down to a normal level and keeping it there can do that.

A normal A1C level is certainly below 6.0. And itís likely to be much lower yet.

ďIn my experience, non-diabetics seem to run in a very narrow range between 4.2 and 4.6. This is much lower than what the ADA or any of the diabetes associations are seeking in patients.Ē says Dr. Richard K. Bernstein in Beating Diabetes Type 1.

ďDiabetic neuropathy is caused by high blood sugar,Ē he writes. ďIt doesnít happen just because you are diabetic. The reason I donít have it right now is because Iíve had normal blood sugars, more or less for the past forty years. Prior to that, I had severe neuropathies.Ē

He writes that the neuropathy goes away in two steps. Metabolic neuropathy, where the nerves are swollen with fluid and sorbitol, can go away within weeks. With anatomic neuropathy, where the nerves have actually died, you have to wait until they regenerate. Depending upon the length of the nerve this can take years.

If you just mask the pain with drugs, ďthe neuropathy will get worse and worse so that eventually your limbs will become totally numb and you wonít be able to feel anything.Ē

If you have diabetic peripheral neuropathy, you will, of course, want to mask the pain. But donít let that stop you from reversing it.
- See more at: http://www.healthcentral.com/diabetes/c/17/172907/reversing-diabetic-neuropathy#sthash.p8EdJFxC.dpuf