Freedom From Pain!








                    Pain Relief That Works -

    Block the Pain & Get On With Your Life!

Developed after more than 20 years of research in the Department of Neurology at the Vanderbilt University School of Medicine and the Center For Pain Research and Neuromagnetics at the University Medical Center in Nashville, TN.


 QUADRABLOC™ is a safe and effective alternative for superior pain relief that quickly blocks your pain right at the source, without pills!

How Does It Work?


Pain signals originate in the sensory nerve fibers.  These fibers, located throughout the body, are responsible for sending pain signals to the brain.  You cannot feel pain unless your brain receives these signals.  Quadrabloc works by using patented, quadrapolar magnetic discs that block these pain signals.


Put simply, the QuadraBloc uses magnetic principles to disrupt the transduction of the electrochemical pain signals to the brain. QuadraBloc uses, not one, but four magnets and a focusing ring placed in a square or diamond pattern directly over the affected nerve, where the gradient of the magnetic field has the strongest impact on the nerve's pain signal.  Pain relief can be achieved in a matter of minutes with proper placement of a Quadrabloc disc.

Quadrabloc magnets are powerful and work to quickly block pain at the source so you can get on with your life.

          1. Drug Free                                                                   8.  No Prescription Required

          2. Simple                                                                        9.  Works Very Fast

          3. Non-Invasive                                                           10.  Lasts a Lifetime

          4. Safe                                                                          11.  Cost Effective (No Refills Required)

          5. Effective                                                                  12.  Will Not Make You Drowsy

          6. Non Addictive                                                         13. Will Not React With Your Other Medications

          7. Based on Scientific Evidence                                14. Pain Relief Works All Day & Night

                                                                                                       (As long as you wear the Quadrabloc)

Even when treated with known pharmaceutical interventions, patients with Ankylosing Spondylitis can still experience periods of pain in a variety of locations:  The SI joints, lower back, mid back, upper back, neck, shoulders, knees, feet, jaws, hands, ribs, etc.  The risks and dangers associated with NSAIDs are well known.  That leaves pain medications, which have limited effectiveness, as well as side-effects, and over a life-time they are expensive and can lead to dependency. 

Would you like another that works?

There are 3 factors that make Quadrabloc magnets effective in blocking pain:

1. The finely tuned steep gradient field

2. The dose (strength) measured by Tesla or Gauss

3.  The placement

It is well known that bipolar magnets produce a more uniform magnetic field. But it is the unique ability of Quadrabloc to generate a steep field gradient from the close interaction of alternating poles that makes it so effective.  Common magnets have a negligible field gradient and hence they do not possess the same therapeutic effectiveness as Quadrabloc.

The patented design of Neodymium rare earth Quadrabloc magnets includes a unique arrangement of four magnets and a magnetic flux ring. It creates a sufficiently high gauss level and an exceptionally high (steep) field gradient.

Essentially it is the steep field gradient that blocks the firing of nerves that send pain signals to the brain.  This does not mean that you will be numb and unable to feel in the area where you apply the magnets.  They work on a specific nerve pathway and will not interrupt all sensation.  If you bump yourself while wearing Quadrabloc, you will feel it.








Quadrabloc received FDA clearance in March 2017, and it is available as an over-the-counter pain management device.

This is NOT "Magnetic Field Therapy"

It is important to understand that using Quadrapolar Magnets over an anatomical target site to block a neurological impulse responsible for transmitting the pain signal to the brain is ENTIRELY different from something else you may have heard of…. “Magnetic Field Therapy” or “Magnetic Therapy”.  What is "Magnetic Field Therapy"?


Magnetic Field Therapy involves using magnets (not Quadrapolar magnets, so the magnetic field they generate, if any, is weak by comparison) into bracelets, shoe inserts, rings, etc. You wear these items, and rather than targeting a specific site, the premise is that by just being near or on your body, in any random location, they will balance your own body’s magnetic field and make you healthier as a result.   By contrast, the patented mode of operation for Quadrabloc, which is well backed by science, is not to balance your own body's magnetic field, but rather is to block pain signals.  






The placement of the Quadrabloc magnets is very important for their effectiveness.  For maximum pain management the QuadraBloc must be placed directly over the appropriate nerve.  Below you can see the proper placement for different areas of the body:

                                LUMBAR PAIN                                                                    NECK PAIN

                           SHOULDER PAIN                                                                  HIP PAIN

                             WRIST PAIN                                                                            JAW PAIN

                              ANKLE PAIN                                                                               KNEE PAIN






Quadrabloc magnets come as a set of 4 single,

individual magnetic discs.  Perfect for addressing

local pain with flexible application.  A user guide

is included with the magnets to assist in proper

application of the magnets.  It comes in a carrying

case.  Each magnet is 1.5 inches in diameter.  It

also comes with 104 adhesives (refills available).


                                                                                         Quadrabloc magnets also come in a 4 x 6 inch pad                                                                                           that contains a configuration of 5 magnets.  It                                                                                                   comes packaged in a case with 3 straps of various                                                                                           lengths that can be used to hold the pad in place.                                                                                             It works well for the aread of: lumbar back,                                                                                                         shoulder, hip, knee, etc.   It also can be placed                                                                                                   beneath garments.  If you have frequent and                                                                                                     severe SI joint pain, a pad over each SI joint, and a                                                                                           third one in the middle over the lumbar region                                                                                                 would be a very powerful configuration to                                                                                                           completely combat this pain.  For others with less                                                                                             severe pain, a pad over each SI joint is sufficient.

Last of all, Quadrabloc also offers a product called

a "Back Belt".  This belt contains a configuration of

7 quadrapolar magnets arranged in an optimal

pattern to address lower back pain.  The belt is

available in 2 sizes:  Regular or Large.  The regular

accommodates a waist size of 22-38 inches.

The large accommodates a waist size of 34-52 inches.


Research and Scientific Backing

The principles that the QuadraBloc is based on were first published in Environmental Science in 1991. In
addition, the device's effectiveness is supported by more than a decade of cell research at the Vanderbilt
University School of Medicine and at the Center for Pain Research and Neuromagnetics at the University
Medical Center in Nashville, Tennessee, as well as numerous other studies performed around the world. To
eliminate the experimenters' biases, several of the studies done have been "double blinded," which is where
neither the doctor nor the patient know which group the patient is in: the experimental group, which uses the
QuadraBloc device, or the control group, which uses a "placebo" or a dummy device.

The bottom line is, the principles used in creating the QuadraBloc are scientifically researched and well documented.
All of the results to date demonstrate that QuadraBloc products are safe, low in cost and remarkably effective.  The patented magnets have been around for over 20 years and have been sold in over 40 countries.

Your Quadrabloc magnets will last for a very long time.  To ensure this, avoid exposing your magnets to extreme changes in temperature.  For example, do not put them in the freezer or apply ice packs over the magnets.  Also, do not get them wet or allow them to rust.  For example, do not shower with them on.







Contraindications:  Quadrabloc products should not be used near sensitive medical equipment or implants such as pacemakers, implanted defibrillators, aneurysm clips, spinal cord or peripheral nerve stimulators, implanted or external infusion pumps, transdermal patches, insulin pump, or hearing aids).   The effects of Quadrabloc on pregnant women is untested and unknown and therefore not recommended.  This product is not intended to be used as a replacement for professional medical treatment.  Do not place Quadrabloc near your cell phone, credit cards, computer or sensitive mechanical or electrical equipment.  


Holcomb RR, Parker RA, Harrison MS. Biomagnetics in the treatment of human pain-past, present, future. Environ Med. 1991;8:24-30

Segal, N.A., Toda, Y., et al. (2001). Two configurations of static magnetic fields for treating rheumatoid arthritis of the knee: a double-blind clinical trial. Arch Phys Med Rehabil: 2001 Oct;82(10):1453-60;. PMID: 11588753doi.

Vallbona C., Hazelwood C.F., et al. (1997). Response of pain to static magnetic fields in postpolio patients: a double-blind pilot study. Arch Phys Med Rehabil. 1997;78(11):1200-3. PMID: 9365349doi

Kovacs-Balint, Z., Csatho, A., et al. (2011). "Exposure to an inhomogeneous static magnetic field increases thermal pain threshold in healthy human volunteers." Bioelectromagnetics2011;32(2): 131-139. PMID: 21225890; doi.

Laszlo, J., et al. (2012) “Effect of local exposure to inhomogeneous static magnetic field on stomatological pain sensation - a double-blind, randomized, placebo-controlled study.” Int J Radiat Biol. 2012 Feb 28
PMID: 22288770doi.

Weintraub, M.I., et al. (1999). Magnetic Bio-Stimulation in painful diabetic peripheral neuropathy: a novel intervention – a randomized, double-placebo, crossover study. American Journal of Pain Management. 1999;9:8-17.

Brown, C.S., Ling, F.W., Wan, J.Y., et al. (2002). Efficacy of static magnetic field therapy in chronic pelvic pain: a double-blind pilot study. Am J Obstet Gynecol 2002;187:1581-7. PMID: 12501067doi.

Holcomb, R.R., Worthington, W.B., McCullough, B.A., McLean, M.J. Static magnetic field therapy for pain in the abdomen and genitals. Pediatr Neurol. 2000;2(3)3:261-4. PMID: 11033291doi.

McLean et al. (2001) Static Magnetic Fields for the Treatment of Pain. Epilepsy & Behavior2: S74-S80 (2001).doi.

Pittler et al. (2007) Static magnets for reducing pain: systematic review and meta-analysis of randomized trials. CMAJ: 2007 Sep 25;177(7):736-42. PMID: 17893349doi.

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It is well known that patients with Ankylosing Spondylitis benefit from regular exercise and activity.  Pain and stiffness can often make this difficult.  By blocking the pain, you will find it easier to maintain an active lifestyle!

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Amy R

"Quadrabloc magnets have been the single most important weapon in my toolbox for fighting symptoms of Ankylosing Spondylitis, specifically the characteristic pain and inflammation associated with the disease.  It has given me my life back, and even better, without drugs or side effects!"  

Martye S.

"I can no longer imagine life without Quadrabloc.  It relieves the pain without the expense and time involved with trying to see a doctor.  And , in my case, no pain relievers are required!"

David E

"Quadrabloc makes me forget I have pain within minutes of placing it on my lower back.  Quadrabloc is a life saver.  Anyone with lower back pain  should have it."