Cannabis That Can Stop the Munchies? What is THCV?

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MEDICAL MARIJUANA

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Cannabis is legal in California for adult use as of January 1, 2018. This may be helpful to someone you know. It is a most important drug. Below you can find a few pointers that are basic to understanding what strains to try. Distributors are swamped with ten times as many buyers as last week, prices are doubled, taxes are very high, it is very expensive and you will need to test many strains before you find what works for you without making you stupid with euphoria that lasts 12 hours. Do be warned of turning the body into sofa-size obesity overnight. Munchies occur with high THC strains. To discuss below how to avoid that torture and still relieve pain or muscle spasm.

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Horvath et al at Yale in 2015 found cannabis stimulates hunger and arousal in hypothalamic neurons. Here’s the YaleNews on the multi-authored work.

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Horvath is the Jean and David W. Wallace Professor of Neurobiology and of Obstetrics, Gynecology, and Reproductive Sciences, director of the Yale Program in Cell Signaling and Neurobiology of Metabolism, and chair of the Section of Comparative Medicine.

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To orient you in the quote below, cannabinoid receptor 1 (CB₁R) is one of the two known cannabinoid receptors in the brain. Others are located outside brain, throughout the body.

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“The Pomc gene encodes both the anorexigenic peptide α-melanocyte-stimulating hormone, and the opioid peptide β-endorphin. Hypothalamic pro-opiomelanocortin (POMC) neurons promote satiety. Cannabinoid receptor 1 (CB₁R) is critical for the central regulation of food intake. CB₁R activation selectively increases β-endorphin but not α-melanocyte-stimulating hormone release in the hypothalamus, and systemic or hypothalamic administration of the opioid receptor antagonist naloxone blocks acute CB₁R-induced feeding.

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Interesting. Low dose naltrexone, which is essentially long acting naloxone, may block munchies in humans? At what dose? Please comment if you take naltrexone 4.5 mg or 15 mg (anti-inflammatory doses) or 28 mg (weight loss dose) or 50 mg and above doses of naltrexone (high doses for addiction).

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One strain that is better at stopping or reducing the munchies, and that is believed due to a cannabinoid in the strain called THCV. You can always do a search for THCV.

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Cannabis is one of the few medications that can relieve some of the worst side effects of opioid withdrawal. Many patients find they need to use fewer opioid pills for pain or can stop them altogether; they need to use fewer muscle relaxants; and they can eat or sleep better if they use cannabis. Once cannabis became legal, many alcoholics were able to give up alcohol because their first preference is cannabis.

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Get a low cost recommendation for medical marijuana in minutes at home from your mobile phone. The best source for recommendation is : HelloMD.

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Cannabis may be legal in all states once tobacco companies toss some money at Congress. Could cannabis be related to the vow of Phillip Morris and a wave of big tobacco companies to stop selling cigarettes this year?

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It is dreadfully expensive and heavily taxed. All states should adopt New Mexico’s law that allows healthcare insurers to reimburse patients who have paid for medicinal cannabis. Voters…

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Cannabis is made by the body and the brain makes two of the endogenous cannabinoids. If is highly anti-inflammatory, and profoundly important mainly in the immune system but also in bone turnover. You have more cannabinoid receptors in your body than any other kind. It is as old as sponges, an ancient medicine.

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A WORTHY READ

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Mr. X – by Carl Sagan who describes his experience with marijuana at length and used it creatively for decades opening his brain to experiences he was otherwise not oriented to at all.

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MUNCHIES

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Fear the munchies. Cannabis, medical marijuana, can cause the munchies, an overwhelming desire to eat nonstop, usually all the most high calorie things your desperately fevered brain can dream of cramming in.

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Certain strains of cannabis can be life saving for those who have loss of appetite from conditions such as cancer, HIV/AIDS, depression, inflammatory conditions, etc. But the munchies can be disastrous when you cannot afford to gain weight due to pain or disability or simply wish to develop an important standard to maintain best health which means good lean body weight. The best way to reduce inflammation is to avoid obesity, avoid sugar, avoid diabetes, heart attacks, strokes. Remember inflammation is the root cause of 90% of the conditions we die of: diabetes, cancers, Alzheimer’s, Parkinson’s, autoimmune disease, atherosclerosis, etc.

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Those with an eating disorder should scrupulously avoid those strains that are highly rated for helping anorexia, loss of appetite.

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CHOOSE STRAINS THAT STOP THE MUNCHIES

STRAINS WITH HIGH THCV  OR HIGH CBD 

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If needing high THC for pain or appetite, for example, then a strain with high THC and high THCV is Durban Poison. Read in detail about strains on leafy.com using the search function and it will find dispensaries in your area.

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If low THC is all you need, then Leafly discusses high CBD strains with low THC currently available. Google it or ask the dispensary.

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I am not going to do more than mention these three cannabinoids: THC, CBD, THCV. You can google them but do glance at my outdated 2009 cannabis website – CBD has vastly changed since then, available even at farmer’s markets and nutrition departments of groceries.

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The cannabis plant has 400 chemicals of which about 86 are known cannabinoids but we focus on just a few and hybrids have been bred to display many qualities and various percentages of cannabinoids.

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THC

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THC, tetrahydrocannabinol, can cause euphoria and is the principal psychoactive ingredient useful for pain, depression, appetite, multiple sclerosis, fatigue, stress, and many conditions including just to have fun, be giggly or creative. For the California Medical Board, a strain with 18% THC is considered high, but some strains such as Holy Grail have 27% or more THC. Some strains are noted for causing more anxiety or paranoia due to THC content. It is widely said THC is necessary for pain relief but… see CBD below.

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CBD

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CBD, cannabidiol, a non-psychoactive cannabidiol that blocks the psychoactive component of THC so that you may be able to mix with THC in order to use a stronger dose of THC for the underlying condition —  find your best ratio of CBD to THC. Or use 100% CBD. Among strains of flower sold at dispensary, I’m not sure what % CBD

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Some people are highly sensitive to THC (paranoia, panic attacks, anxiety) and cannot use any THC or only very tiny amounts of THC with higher percentage CBD.

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Some use pure 100% CBD which is said to be useful for Crohn’s Disease, PTSD, multiple sclerosis and certain seizure disorders, the severe childhood Dravet Syndrome. There is a recent single report of an adult who failed all anticonvulsants and responded to CBD alone. I have seen a patient with depression after 2 years of severe disability from 4 major chronic pain conditions, surprisingly all pain 100% relieved by CBD. It is widely said that THC is essential for pain relief but for this case not needed.

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Some dispensaries will mix liquid CBD:THC in ratios of 15mg/mL CBD to 0.1 mg/mL CBD all the way up to ratio of 15:15 or more. Use topically, under tongue or swallow. One patient dilutes and uses topically. Very expensive!!! It is the only thing helping his extremely painful autoimmune neuropathy.

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THCV

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Leafly discusses ten strains that will not make you (as) hungry. 

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After discussing high CBD strains, then turn to high THCV:

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High THCV Sativa Strains

“By now you know what THC and CBD is, but you may not be familiar with the less ubiquitous THCV, a related chemical that suppresses appetite. While most strains on the market today tend to test anywhere between 10-20% THC, what’s considered a high THCV content might only hit a high-water mark of 5%. THCV tends to be more abundant in sativa strains, and it’s possible you’ve noticed that sativas tend to provoke hunger less than indica strains. The unique metabolic effects of THCV even have researchers considering its utility in treating obesity and diabetes.”

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Durban Poison is the name of the strain with highest THC and THCV, and a good profile detailed on Leafly: Maximal effect is Energetic > happy > uplifted >> focused >> euphoric. Not everyone may have all these effects.

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Always check Leafly’s negatives for each strain and look at the bar graphs — how severe are the side effects? Note that always worst is dry mouth. Half as bad are dry eyes for this strain – at least not as bad as dry mouth; and much lower in incidence is dizzy, anxious, paranoid. Overall a very good profile for a high THC strain.

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RISKS

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Note, those with Sjogren’s Syndrome who have dry eyes are at risk for corneal transplants and who have dry mouth are at risk for all teeth crumbling, so choose and treat accordingly.

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Cannabis can increase pulse and blood pressure which can be a risk of heart attack and stroke for any age. It is especially likely if you are naive to the drug, i.e. have never used it or have not introduced it to your system for decades. Check blood pressure and pulse before use and after you feel the peak effect.

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The youngest person I found on the internet who died of heart attack caused by cannabis was a healthy 17 year old male, possibly a false report, but cardiac arrhythmias can be fatal and there are undiagnosed cardiac conditions in young athletes who may be likely to use cannabis.

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Cannabis can interfere with memory.

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The adolescent developing brain may be vulnerable to harmful effects.

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HOW TO USE IT

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Vaporize it. Avoid 4 toxins. Rapid onset, short duration of effect.

If smoking, you will inhale 4 major toxins.

Use under tongue or topically on skin.

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If you swallow cannabis, you will not feel effect for 90 to 120 minutes so allow 2 hours before you add more or you may seriously overdose. Duration of effect may be 4 to 12 hours or more – overdosing can last days.

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5 mg oral THC may be too much for a starter dose for some people, but may be average for many, and some may need 10 mg. But heavy users need far, far more: TOLERANCE DEVELOPS!!! Money down the drain. Use only as much as you need or you will develop tolerance and require more frequent and higher and higher doses to reach same effect. That can be unaffordable for the average middle class person. 

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And yes, it may appear in urine for 30 to 60 days, possibly more.

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Cannabis is still a schedule I drug. The Emperor has no clothes. Do not take it onto planes or attempt to mail it.

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Do read more about it on my cannabis website linked above. It is a drug. You will benefit from learning how to use it.

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The material on this site is for informational purposes only.

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It is not legal for me to provide medical advice without an examination.

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It is not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider.

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Comments are welcome.

This site is not for email, not for medical questions, and not for appointments.

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For My Home Page, click here:  Welcome to my Weblog on Pain Management!

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Please IGNORE THE ADS BELOW. They are not from me.

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Low dose naltrexone (LDN), novel anti-inflammatory treatment for chronic pain

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A review of the clinical use of low dose naltrexone appeared today by Younger, et al. from Stanford (see e-Pub below).

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Naltrexone is one of the most important medications I have prescribed, alone or in combination with other medications for intractable chronic pain and/or treatment resistant Major Depressive Disorder or Bipolar Disorder. It has been most extensively used anecdotally and off label since 1985 for treatment of Multiple Sclerosis.

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Naltrexone acts on two receptors in the central nervous system: (1) the opioid receptor and (2) the TLR4 receptor on glia.

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(1) The opioid receptor is blocked by naltrexone. Naltrexone cannot be given to someone who uses opioid analgesics because it would cause a severe or unpleasant opioid withdrawal reaction. But in low dose, it can do better than opioids for relief of intractable pain. I would like to see it tried for pain, alone or in combination, before any opioid is started. And if on opioids, taper slowly off opioid in order to see how superior low dose naltrexone is. See case reports elsewhere on this site.

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Low dose naltrexone is quite different than its use in high dose where it is FDA approved for addiction to alcohol and opiates. Naltrexone reduces craving. However, in high dose, it blocks the endorphins, the opiates that your brain produces, thus causing pain and depression.

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(2) The TLR4 receptor was discovered by Bruce Beutler, MD, working at Scripps Research Institute. He won the Nobel Prize in 2011 for that profound work. The TLR4 receptor is found on the microglial cell in the central nervous system. The microglia far outnumber nerve cells in the brain and spinal cord. I discussed a small portion of the vast science of the importance of glia, your innate immune system and inflammatory cytokines, here. This research on glia, the innate immune system, is new, largely in the last 10 to 15 years.

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One of the mechanisms by which opioids create pain is that opioids trigger glia to release pro-inflammatory cytokines, i.e. opioids create a neuroinflammatory response in a manner similar to endotoxin from bacteria. Opioids upset the balance of pro- and anti-inflammatory cytokines to create more pain. Naltrexone does the opposite by its action on the glial TLR4 receptor reducing pro-inflammatory cytokines and relieving pain.

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Inflammation kills! Glia and/or the inflammation produced by glia are involved in many pathological processes: Alzheimer’s, Parkinsons, ALS, MS, chronic pain, depression, autoimmune disease, cancer, atherosclerosis. The TLR4 receptor is necessary for death or destruction of oligodendrocytes and myelin, as occurs in multiple sclerosis. Does that mean low dose naltrexone may play a role in modulating these conditions?

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See reviews by distinguished Professor Linda Watkins, PhD, and Mark Hutchinson, PhD, on glia, neuroinflammation and the neuroimmunopharmacology of opioids. Besides glia, Watkins and Hutchinson have recently discovered Toll-like expression of neuronal receptors in pain states.

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For access to articles on glia, cytokines and the TLR4 receptor, see the RSD Syndrome Association library of key publications. And donate to them. They have supported key research in pain when NIH gave less than half of 1% to pain research in 2006, now far less since the deadly the recession of 2008 and the ever threatened fight over funding the national debt.

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Being interested in glia, and treating so many patients with Major Depressive Disorder who had failed other treatments, I did a review of depression and glia and found the same increase in pro-inflammatory cytokines in depression that are found in chronic pain. Since low dose naltrexone is anti-inflammatory, i.e. it modulates or resets the balance of pro-inflammatory and anti-inflammatory cytokines that are produced by glia, I felt it important to try in Major Depressive Disorder. Besides, I had seen its profound effect on so many different forms of intractable pain for many years. Use of LDN has never been associated with toxicity and rarely any side effects.

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My patient had severe suicidal ideation with Major Depressive Disorder for more than three months, unchanged after treatment at a psychiatric center where she had stayed almost four weeks. She began with 4.5 mg in the office and 25 minutes later, on the drive home, her appetite returned! She walked in the house and her dad was astonished – she no longer walked like she was 105 years old! She had the energy to do her laundry and cook for the family for the first time in more than three months.

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Another person for whom I prescribe naltrexone for Major Depression, wrote to me saying Massachusetts General, a Harvard Hospital, was starting clinical trials of low dose naltrexone for Major Depressive Disorder. Other new clinical trials of low dose naltrexone can be found here.

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Jared Younger, PhD, from Stanford first published on the use of naltrexone in fibromyalgia – see my discussion here.

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Today in PubMed, ahead of print, Dr. Younger et al. publish a review of low dose naltrexone, a glial modulator.

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The use of low-dose naltrexone (LDN) as a novel

anti-inflammatory treatment for chronic pain

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Authors  Younger J, Parkitny L, McLain D.

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Clin Rheumatol. 2014 Feb 15.  [Epub ahead of print]

Affiliation

Abstract

Low-dose naltrexone (LDN) has been demonstrated to reduce symptom severity in conditions such as fibromyalgia, Crohn’s disease, multiple sclerosis, and complex regional pain syndrome. We review the evidence that LDN may operate as a novel anti-inflammatory agent in the central nervous system, via action on microglial cells. These effects may be unique to low dosages of naltrexone and appear to be entirely independent from naltrexone’s better-known activity on opioid receptors. As a daily oral therapy, LDN is inexpensive and well-tolerated. Despite initial promise of efficacy, the use of LDN for chronic disorders is still highly experimental. Published trials have low sample sizes, and few replications have been performed. We cover the typical usage of LDN in clinical trials, caveats to using the medication, and recommendations for future research and clinical work. LDN may represent one of the first glial cell modulators to be used for the management of chronic pain disorders.

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The material on this site is for informational purposes only.

It is not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider.

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For My Home Page, click here:  Welcome to my Weblog on Pain Management!

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LDN World Database – Low Dose Naltrexone

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This is a database of persons who have tried low dose naltrexone, their diagnosis, dosage and response to it, if any. The database lists many different medical conditions.

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For example, persons with Multiple Sclerosis, will choose the link above, that has hundreds of persons with MS who have tried naltrexone. Don’t forget to see more pages once you reach the bottom. For a graph of the overall responses, then go back to the main link on Multiple Sclerosis where you see these choices:

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To view the database please click HERE

To view the Graph on how people feel about LDN please click HERE

To add your experience with LDN please click HERE – of course first select the condition you have, so your entry falls into the proper category.

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If your condition is different, just select the condition from the list on left.

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For example for fibromyalgia:

To view the database please click HERE

To view the Graph on how people feel about LDN please click HERE

To add your experience with LDN please click HERE

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Here for Irritable Bowel Syndrome, Crohn’s or Ulcerative Colitis.

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If your condition is not listed, check Other on the left side of the list.

This forum is from LDN Research Trust, a registered non-profit Charity based in the UK, with participants from many countries internationally.

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I will soon be posting several case reports of my patient responders, persons with intractable pain from various conditions. Some have been pain free one or two years on naltrexone. Some who had years of previously intractable pain have responded to low dose naltrexone and remained pain free more than one year after discontinuing LDN.

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MECHANISM

for those who like to know the science

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We have known for decades that naltrexone binds to the mu opioid receptor. It blocks the effect of opioids like morphine at the mu receptor. We now know it also acts at another receptor.

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You may wish to watch this video that explains Toll Like Receptors, TLRs for short. This is a lecture by Dr. Rachel Allen, whose PhD in immunology is from Oxford University. After that, she worked at Cambridge University on innate immune receptors such as the TLR’s.

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In 2008, it was shown that naltrexone binds at one of the Toll Like Receptors, the TLR4 receptor. There are 13 Toll Like Receptors, and so far they have studied naltrexone only at one of them, the TLR4. That is important because the TLR receptors are part of the innate immune system.

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The Toll Like Receptors are not like other receptors. Not these snug little pockets where naltrexone binds. Instead the Toll Like Receptors are like an entire football field, with enormous nooks and crannies where it has many interactions with many molecules. Now, in 2010, scientists are asking if naloxone or naltrexone is acting at TLR4 or even higher up in the cascade.

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The study of immune cell glial interactions is in its infancy. Glial cells are the immune cells in your central nervous system (brain, spinal cord). They are very involved in dysregulation of pain systems, neuroinflammation, and some neurological diseases such as Multiple Sclerosis, Alzheimer’s, Parkinson’s Disease, ALS, infections of the brain, etc.

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One of our distinguished glial scientists, Linda Watkins, PhD, in October 2010, said we are not even sure naltrexone binds to the Toll Like Receptor. Rather, it involves AKT1, close to the TLR4 receptor, very very high up in the cascade at the dimerization step, the recruitment of CD14. This is being worked out now.

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Dr. Watkins with Kennar Rice, PhD, from NIH/NIDA, et al, has a paper in press in Cell:

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Glial activation participates in the mediation of pain including neuropathic pain, due to release of neuroexcitatory, proinflammatory products. Glial activation is now known to occur in response to opioids as well. Opioid-induced glial activation opposes opioid analgesia and enhances opioid tolerance, dependence, reward and respiratory depression. Such effects can occur, not via classical opioid receptors, but rather via non-stereoselective activation of toll-like receptor 4 (TLR4), a recently recognized key glial receptor participating in neuropathic pain as well. This discovery identifies a means for separating the beneficial actions of opioids (opioid receptor mediated) from the unwanted side-effects (TLR4/glial mediated) by pharmacologically targeting TLR4. Such a drug should be a stand-alone therapeutic for treating neuropathic pain as well. Excitingly, with newly-established clinical trials of two glial modulators for treating neuropathic pain and improving the utility of opioids, translation from rats-to-humans now begins with the promise of improved clinical pain control.

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For chronic pain, targets of interest are: glial attenuation, p38 MAPK inhibition.

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Of interest, a commonly prescribed pain medication, amitriptyline, is a TLR4 inhibitor (Hutchinson, 2010).

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You can read many new publications on glia that I posted on my site here, or find it from the banner at top:

Donate to Eliminate Neuropathic Pain

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I am a member of a Neuroinflammation Research Consortium that will be studying these many conditions, some that are painful, others that are not. They involve glia and neuroinflammation.

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For more discussion of mechanisms of action of naltrexone and other publications I have posted, see here, particularly the paper by Zhang, Hong, Kim et al.

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Finally, for those who may feel they are losing heart because medicine has been too slow to adopt the use of low dose naltrexone, let me point this out:

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Dr. Linda Watkins is a University of Colorado Distinguished Professor of Psychology & Neuroscience at the University of Colorado Boulder. She is a world-renown leader in glia research and the neurological applications of glial attenuation, with a focus on alleviation of chronic pain. She is the recipient of the highest award for distinguished basic science research from the American Pain Society and the 2010 John Liebeskind Pain Management Research Award from the American Academy of Pain Management. She has over 300 peer-reviewed publications including articles in Nature, Science, Nature Neuroscience, and Journal of Neuroscience. She received over $2 million in NIH grants supporting 6 generations of IL-10 gene therapy research culminating in XT-101.

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The material on this site is for informational purposes only.

It is not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider.

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For My Home Page, click here:  Welcome to my Weblog on Pain Management!

Low Dose Naltrexone “LDN” and Dextromethorphan off label for Pain, RSD, Chronic Fatigue, Fibromyalgia, MS, Crohn’s Disease

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Low Dose Naltrexone

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Low dose naltrexone, or LDN, has been prescribed “off label” for persons with many conditions including intractable pain, chronic fatigue syndrome, complex regional pain syndrome, RSD, Multiple Sclerosis, Parkinsons Disease, IBS, inflammatory bowel disease, autoimmune diseases and Crohn’s Disease to mention only a few. Low dose naltrexone is not a cure but may be potentially helpful for selected persons with these conditions. It appears to have little or no toxicity at this low dose – a few persons report transient insomnia, nausea or vivid dreams.

Naltrexone and and naloxone are both classified as morphinans, meaning morphine-like. The action of the morphinans and dextromethorphan is on the glia. This discussion relates to those medications. Refer to the paper titled Morphinan Neuroprotection by Zhang, below.

How does it work?

Naltrexone and dextromethorphan are anti-inflammatory. They act centrally and are very different from, and without the toxicity of commonly used anti-inflammatory medications such as ibuprofen or steroids.

They inhibit Superoxide, a free radical, and reduce the toxicity of peroxynitrate metabolism and the excitotoxic effects of glutamate. The mechanism of action occurs at the microglia in spinal cord and brain where they are neuroprotective. Microglia are the immune cells of the central nervous system. Microglia are not only the hallmark of pathology in Multiple Sclerosis but they also play a major role in pain and other degenerative neurological conditions. Reducing the damaging effect of these potent neurotoxins improves function of the immune system and various organ tissues including the spinal cord and brain.

There is evidence that they also increase the release of neurotrophic factors BDNF and GDNF (Jau-Shyong Hong, PhD, at the NIEH/NIH,personal communication).

Chronic pain alters central processing by changing the neurochemistry and the anatomy. This can lead to premature aging of the brain with loss of gray matter and brain atrophy as reported on MRI’s of persons with chronic low back pain. This may also occur in other stress-related disorders, such as chronic depression or post-traumatic stress disorder.

There has been a blossoming of basic neuroscience research on microglia that began in the 1980’s. At the American Pain Society meetings in San Diego in May 2009, there were hours of lectures for several days on the basic science of microglia and pain mechanisms.  This confirms the experience that I have seen clinically.

I am grateful to have the guidance of patients, physicians, and scientists in learning about the use and mechanisms of low dose naltrexone, with special thanks to Dr. Jau-Shyong Hong, PhD, Chief of Neuropharmacology at NIEH/NIH. He is one of the country’s leading experts on microglia, opioid antagonists and morphinans and has published some of the references below.

New science shows naltrexone to be a potent anti-inflammatory — much stronger and with a much different mechanism than the weaker cox inhibitors such as ibuprofen, Vioxx, Celebrex, Naproxen with none of those adverse side effects. Dr. Hong reports that in animal studies, dextromethorphan is even stronger than naltrexone.

Naltrexone is one of a few compounds called morphinans, meaning it has a structure similar to morphine, but naltrexone blocks morphine-like medication:  it is an antagonist.  For detailed discussion of morphinans refer to the article by Zhang et al, listed below.

There are links to further understand the basic science in medical publications and references below. We all owe thanks to patients whose clinical recovery with the use of low dose naltrexone has kept this work alive since its effect on the immune system in Multiple Sclerosis and HIV/AIDS was discovered by Bernard Bihari, MD, in 1984. He was a Harvard trained academic neurologist based in NYC. Their testimony can be found in the book mentioned below or in many web sources. The excitement of their recovery and their fundraising prompted UCSF and Stanford to begin double blind studies now 25 years later.

Recent clinical research

In 2009, Drs. Younger and Mackey of Stanford Pain Center reported a double blind study of low dose naltrexone in persons who had fibromyalgia more than 10 years and showed 30% improvement in pain and fatigue. They now plan a larger study. Bruce Cree, MD, of the UCSF Multiple Sclerosis Clinic in 2008 reported improvement usinglow dose naltrexone in a masked placebo controlled study to evaluate quality of life in MS [reference below] testing only pain, cognitive function and mental health. They propose doing a larger study to measure other functions in MS. In the 2007 study by Jill Smith, MD, at Hershey Medical Center [reference below], 67% of persons with Crohn’s Disease achieved remission in a few weeks, and total 89% had a response to therapy. As described in their publication: “Endogenous opioids and opioid antagonists have been shown to play a role in healing and repair of tissues.”Dr. Smith has received a $500,000 grant from NIH to continue research on low dose naltrexone for Crohn’s Disease.

Multicenter studies on LDN for persons with Multiple Sclerosis have been done in Italy and Scotland.  New research is starting in Scotland that will include study of the toxicity of peroxynitrate metabolism in MS first proposed by a Nobel winning scientist in 1991, see the reference on peroxynitrate metabolism and Dr. Gilhooly’s references, below.  Scotland has the highest incidence of MS in the world, even higher than Great Britain and Ireland.  Dr. Gilhooly’s patients reported remarkable improvement in function on LDN that led to him starting this work.

My experience prescribing LDN

I have been prescribing naltrexone for 6 years in ultra-low microgram doses, and more recently prescribing low dose naltrexone at doses of 1 to 4.5 mg.  It is one of the most exciting developments in pain medicine and neurodegenerative diseases that I have ever seen.  It was previously unimaginable to me to see some persons with intractable pain now pain free and off opioids because of low dose naltrexone or a similar medication that will soon be posted on this weblog.

I have not yet been able to predict who will respond to low dose naltrexone with decrease in symptoms, but many patients have had profound relief. Often it may reduce intractable pain to zero despite failing to respond for many years to all known therapies. Inability to predict a response to pain is true of many classes of medication that we trial “off label” for pain relief and even those that are FDA approved for pain. Paradoxically, the same is true for morphine and similar strong opioids.  In fact, opioids relieve pain and opioids create pain at the same time, and it is not uncommon for pain specialists to see individuals with severe pain despite using high dose opioids.

“Off label” use means it is not FDA approved for these purposes.  Instead, low dose naltrexone is used in small doses of 1 to 4.5 mg at bedtime that must be made by a compounding pharmacist, rather than the 50 mg tablets or higher doses that are FDA approved for prevention of addiction and alcoholism.

Many thanks to the sponsors and speakers of the Fourth Annual Conference on Low Dose Naltrexone which was held for the first time on the West Coast at USC on October 8, 2008 – they have provided other references attached below.

Naltrexone became available as a generic drug many years after 1984, and thus there is no profit in this use for pharmaceutical companies.  Only recently, has the science progressed enough to understand its new uses.  Therefore what you may read in various sources on the web may be the “old science,” whereas the articles below are the “new science.”

I will be updating this page in the near future but wanted to make these recent publications and documents available now.

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Update June 22, 2010: Check back for patient case reports I will be publishing soon now that I have more specific information on how morphinans work on path pathways and on the central nervous system.

I recommend this book:

The Promise of Low Dose Naltrexone Therapy

by Elaine A. Moore & Samantha Wilkinson, McFarland & Company Inc., 2009

“Grounded in clinical and scientific research, this book describes the history of naltrexone, its potential therapeutic uses, its effects on the immune system, its pharmacological properties, and how the drug is administered. It also lists … patient resources, and includes interviews with LDN patients and researchers.”

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Non-stereoselective reversal of neuropathic pain by naloxone and naltrexone, involvement of toll-like receptor 4 (TLR4)

Morphinan Neuroprotection by Zhang, Hong, Kim, et al, Crit.Rev.Neurobiol. 16(4):271-302, 2004 (PDF)  450k

Microglia Mediated Neurotoxicity Molecular Mechanisms. Block Zecca Hong, Nature Reviews Neurosci 8:57, 2007 (PDF) 529k

Peroxynitrites in MS,  Dr Tom Gilhooly, Scotland, USC 4th Annual LDN Conference 2008 (PDF)  77k

LDN research on MS in Scotland Dr Tom Gilhooly, USC 4th Annual LDN Conference, 2008 (Powerpoint)  12M

LDN In MS, Bruce Cree MD, UCSF Poster, 2008 (PDF)  154k

A Pilot Trial of LDN in Primary Progressive MS, Gironi et al, Multiple Sclerosis 14:1076–1083, 2008 (PDF)  222k

LDN for Treatment of MS – Clinical Trials Are Needed, Patel, Ann Pharmacotherapy 41 (9):1549, 2007 (PDF)  114k

LDN Improves Active Crohns Disease, Jill Smith MD et al, Am J Gastroenterology 2007 (PDF) 121k

LDN Immune System Autism & HIV, Vojdani, USC 4th Annual LDN Conference, 2008(Powerpoint)  5.7M

LDN Immune System Autism & HIV, Vojdani Part 2, USC 4th Annual Conference, 2008 (Powerpoint)  3.6M

Naltrexone ULD Decreases Side Effects and Potentiates the Effect of Methadone 2003 JP&SM Cruciani Arbuck  (PDF) 80KB

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Update December 10, 2010:  For further research publications on glia, please refer here.

Refer here for a case report of severe RSD responding primarily to naltrexone.

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It is not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider.

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