What Is Low-Dose Naltrexone?

While naltrexone is a decades-old pharmaceutical that is used to manage alcohol and opiate addiction at doses of 50-100mg, low-dose naltrexone (LDN) is commonly given at dosages of 0.5-6.0 mg. At this lower dosage, LDN is typically prescribed off-label to manage neurological symptoms of disorders such as Lyme disease, multiple sclerosis, fibromyalgia, autism and other neuroimmune chronic conditions. LDN has very little side effects and no known toxicity.

Low-Dose Naltrexone Blocks Inflammation

LDN has been found to block microglial cells, which are immune-system cells in the brain that cause inflammation. These cells are the ones responsible for the manifestation of many symptoms of neurological disorders.

LDN shuts down the production of inflammatory cytokines within the body, thereby helping to switch off autoimmune reactions. In addition, research has shown that it can also lessen the amount of breakdown of the myelin sheath that protects the electrical circuitry of the brain and spinal cord. This breakdown, called demyelination, is a common feature of neuroimmune disorders and is brought on by excessive inflammation within the nervous system.

Inflammation can not only cause demyelination, but it can also cause common symptoms of chronic health disorders such as pain, swelling, stiffness, cognition problems, memory problems, neuropathy, fatigue, behavioral issues, allergies and gastrointestinal issues. LDN has been shown to reduce the severity of such neurological symptoms.

Other Ways to Lower Inflammation

Start with Diet

There are many ways to lower inflammation that have nothing to do with the consumption of pharmaceuticals. We advocate taking a holistic, integrative approach. The first step is to look at the diet and make potential changes. Hidden food sensitivities and intolerances are common causes of inflammation, so consider doing an elimination diet to see if common foods are behind chronic symptoms.

Reducing or eliminating the consumption of high-glycemic foods is another way to reduce inflammation. High-glycemic foods raise blood sugar, and sugar is inflammatory. Other common high-glycemic foods are those made from processed grains, known as “white foods”, such as pasta, bread, crackers and cake. Some practitioners recognize that more and more individuals are becoming insulin-resistant and may thus recommend the elimination of all grains because they ultimately break down into sugar.

Common food additives such as artificial colors, artificial flavors, natural flavors and preservatives can be inflammatory, so eliminating them from the diet can lower inflammation. In addition, because of the way that vegetable oils are processed, they are highly inflammatory, so remove them from the diet.

Consider Supplements

“Eating the rainbow” of naturally colored fruits and vegetables is an excellent start to adding in antioxidants that lower inflammation. People with chronic health conditions often need to supplement to get enough antioxidants to lessen the high amounts of inflammation that are a common root cause of their disorders. Your practitioner may consider giving nutritional supplements such as:

  • Curcumin
  • Green tea extract (EGCG)
  • Broccoli seed extract (sulforaphane)
  • Resveratrol
  • Vitamin C
  • Vitamin E
  • Glutathione

Other Ways

Lowering any of the stressors of the total load of stressors can reduce inflammation. These stressors can be physical, structural, environmental, emotional, biological or behavioral. In addition, please review our page on How to Reduce Inflammation for other ideas.

Low-Dose Naltrexone Boosts the Immune System

LDN not only lowers inflammation, but it also increases a positive immune response by restoring the balance between Th1 and Th2 cells of the immune system. Research has shown that it exerts its immunoregulatory activity by binding to opioid receptors in or on immune cells and tumor cells.

Other Ways to Boost the Immune System

Hidden pathogenic infections in the gastrointestinal system are a common cause of a dysregulated immune system. These infections are known as gut dysbiosis. Most of the immune system is located in the gastrointestinal tract, so improving the health of the gut can improve the health of the immune system as well as the neurological system.

Look for gut dysbiosis by having a stool test, small intestine bacterial overgrowth (SIBO) and/or organic acid test (OAT) performed. Check for nutritional deficiencies, especially for those that affect the way the immune system works such as vitamin D.

Please review our page on Immune System Boosters for more ideas.

About Maria Rickert Hong CHHC

Maria Rickert Hong is a Co-Founder of, and the Education and Media Director for, Epidemic Answers, the 501(c)3 sponsoring non-profit of The Documenting Hope Project.

She is a former sell-side Wall Street equity research analyst who covered the oil services sector at Salomon Smith Barney and Lehman Brothers under Institutional Investor #1 ranked analysts. Later, she covered the gaming, lodging & leisure sector at Jefferies & Co. and Calyon Securities. She quit working on Wall Street when her first son was born.

Prior to working on Wall Street, she was a marketing specialist for Halliburton in New Orleans, where she also received her MBA in Finance & Strategy from Tulane University.

She is the author of the bestselling book Almost Autism: Recovering Children from Sensory Processing Disorder and the co-author of Brain Under Attack: A Resource for Parents and Caregivers of Children with PANS, PANDAS, and Autoimmune Encephalitis. Maria is also a Certified Holistic Health Counselor. Her work can be found on EpidemicAnswers.org, DocumentingHope.com, Healing.DocumentingHope.com, Conference.DocumentingHope.com and MariaRickertHong.com

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Sources & References

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