Vol. 5, Number 9
cheryl riley, editor & writer
Dr. David Bearman,
Gradi Jordan, Ed Glick,
Sunil K Aggarwal,
Jim Greig, Joan Bello,
AAMC El Dorado County CA
AAMC Rhode Island
ACNA Position Statement on Concurrent Cannabis and Opiate Use - Ed Glick
Pain and Conventional Treatments
Pain impulses are carried through nerve fibers which are present in all tissues and organs, and exist in huge numbers in the central nervous system. The CNS is composed of the spinal cord and the brain. The peripheral nervous system (PNS) contains nerves located in the arms, legs, skin and other parts of the body outside the brain and spinal cord. Neurotransmitters like serotonin, dopamine, adrenalin and glutamate, are released by receptors in the cell, in response to specific nerve impulses which trigger their activity. The anatomy of a nerve cell is arranged in order to carry sensory impulses from one cell to another and into the brain and motor impulses from the brain back to a specific area.
There are many different qualities and types of pain. Pain may also be non-physical in nature, arising from psychological trauma or mental illness. Phantom limb pain, for instance, is the perception of pain in an appendage (arm or leg) which has been amputated. Intractable pain is excruciating pain which is unresponsive to medical or pharmacologic interventions.
Analgesics are a class of drugs which (are intended to) block or reduce the movement of pain signals to the brain, reducing the perception of pain. There are many different types of analgesics- including opiates- which treat many different types and intensities of pain. Prescribers attempt to match the analgesic to the pain in the lowest effective dose. As the severity of the pain increases, so does the potency of the drug prescribed. Severe pain, by definition, is pain which defies easy control. The pain cycle often results in escalating doses of one pharmaceutical, until it fails to adequately control the pain or the side effects become excessive. This is followed by a different and more potent analgesic. The side effects and toxicities increase in proportion.
Patient's suffering from severe pain- like migraines, neuropathy or cancer, present a huge challenge to prescribers because the pain continues often for the patient's entire life and involve potentially lethal doses of analgesics over a long time period. Large doses of opiates additionally render many patients unable to effectively function, further reducing quality of life.
Morphine is considered the standard for the most severe pain. It comes in many forms and dosages and combinations with other agents which are meant to synergistically work with the morphine at lower doses. Morphine activates specific receptors which release endorphins. It has very potent central nervous system activity, blocking pain signals in the brain. It can also depress the vital functions of the CNS, like breathing. High doses of morphine can also impair liver function and sensory function and result in constipation. From 1999 to 2010, the number of U.S. drug poisoning deaths involving any opioid analgesic (e.g., oxycodone, methadone, or hydrocodone) more than quadrupled, from 4,030 to 16,651 per year, accounting for 43% of the 38,329 drug poisoning deaths and 39% of the 42,917 total poisoning deaths in 2010.(1)
Analgesic Properties of Cannabis
The neurochemical receptor binding actions of cannabinoids have been described in detail through animal modeling experiments. Cannabinoids interact with serotonergic, dopaminergic, glutaminergic, opioid neurotransmitters, and inflammatory processes. ∆-9-THC reduces serotonin release from the platelets of humans suffering migraine thus inhibiting the pain signals triggered by serotonin.
Clinical considerations with cannabis
and opioid co-administration
Adverse events and contraindications from cannabis/cannabinoids do occur. Most significantly, worsening or precipitation of psychosis. Anxiety or panic reactions may sometimes occur to naive users or patients ingesting substantial doses by mouth. There is no known lethal overdose recorded. Additionally, cannabis (like opiates) may mask underlying diseases. It may also adversely influence the metabolism of other drugs the patient may be using. Cannabis has a long history of use as a harm-reduction substitute for addiction to other substances. Co-occurring substance abuse may or may not be a contraindication to the use of cannabis. A detailed understanding of pharmacological, medical and social circumstances will provide guidance to clinicians. Cannabis Hyperemesis Syndrome has been documented in a small number of long-term cannabis users. Users report colicky abdominal pain, recurring nausea and vomiting, with symptom resolution upon abstinence. The etiology of this disorder is unknown and the occurrence is rare.
Clinician guidelines should include evaluating the risks and benefits of all treatments relative to one another (as well as presence and severity of co morbid substance abuse). Clinician guidelines should not include coercive drug tests based solely on a patient's report of cannabis use. The standardized use of detailed "pain contracts" with mandatory- or unannounced- drug screens should be reserved for only those patients who have significant compliance issues which have been demonstrated over time. The general use of coercive pain contracts undermines the patient's trust in the physician and fosters miscommunication and deception. "Agreements" (as opposed to contracts) with patient's to monitor and document analgesic use over time with the addition of cannabis allows a working relationship with the prescriber which fosters trust.
In the event that a patient's drug screen indicates the presence of cannabinoid metabolites, an enlightened health care provider will engage in a detailed discussion with the patient in order to determine the underlying reason for the use of cannabis and if it is improving the quality of life of the person. A patient's report that he/she "feels better" after they use cannabis should not be detrimental, since the homeostatic regulatory functions of cannabis generally improve comfort.
The refusal of a clinician to discuss with or seriously evaluate the use of cannabis specifically in relation to that person's underlying medical diagnoses violates the clinicians' practice guidelines which include detailed evaluation of the patient's condition through an educated understanding of the complexity of their circumstances and knowledge of different treatments.
Cannabis has been used as an analgesic for 5000 years.(7) As restrictive laws give way to sensible regulation, its use as a medicine will increase, because patients are unable or unwilling to tolerate potent pharmaceuticals, or cannot afford them. All clinicians should be undertaking an education in endocannabinoid therapeutics in order to gain the understanding of this complex system. Clinicians should also understand route-dependant metabolism, federal and state legal barriers, strain evaluation processes, safe handling considerations, research advancements, novel cannabinoid drug development and dosing options- like vaporizers.
The American Medical Association's Code of Medical Ethics, Opinion 1.02 - The Relation of Law and Ethics(8) reads, in part:
"Ethical values and legal principles are usually closely related, but ethical obligations typically exceed legal duties. In some cases, the law mandates unethical conduct." "In exceptional circumstances of unjust laws, ethical responsibilities should supersede legal obligations."
The federal ban of the use of medical cannabis by patients may be interpreted as an ethical dilemma for physicians, compounded by the DEA prescriptive authority which may be revoked, rendering the clinician incapable of practice. Physicians and Nurse Practitioners must weigh these factors. The unwillingness of federal legislators and regulators on all levels to change the scheduling of cannabis represents an unconscionable and inhumane obstacle to cannabis patients, researchers and clinicians. Ethical principles of medical practice require clinicians to work actively to eliminate these injustices and advocate for an intelligent federal policy which does not victimize suffering people and waste tax revenues in the process.
Endocannabinoid therapeutics represents a subspecialty of medicine. The guidelines of clinical practice require "evidence- based" practice resting on the principles of science and ethics. Endocannabinoid therapeutics has evolved to the point where it meets these requirements of practice.
1. National Vital Statistics System. Mortality data. http://www.cdc.gov/nchs/deaths.htm
2. Richardson, et al, Cannabinoids Reduce Hyperalgesia and Inflamation via interaction with peripheral CB-1 receptors. Pain 75, 1998 111-119.
3. Welch SP: Interaction of the cannabinoid and opioid systems in the modulation of nociception. Int Rev Psychiatry 2009, 21:143-51.
4. J, Beaulieu P: Opioids and cannabinoids interactions: involvement in pain management. Curr Drug Targets 2010, 11:462-73.
6. Di Marzo, Endocannabinoids: endogenous cannabinoid receptor ligands with neuromodulatory action, Trends Neurosci. 1998 21, 521–528.
7. Russo E., The Role of Cannabis and Cannabinoids in Pain Management, Weiner's Pain Management, Seventh Edition, 2006, 823-843.
8. American Medical Association: Code of Medical Ethics. Opinion 1.02-The Relation of Law and Ethics. http://www.ama-assn.org/ama/pub/physician-resources/medical-ethics/code-medical-ethics/opinion102.page?
The Modern World - Arthur Livermore
Forty-three years ago the Controlled Substances Act was passed, the Drug Enforcement Administration was created, and the war on marijuana began. I was in my first year of medical school and had just smoked marijuana for the first time. After getting a biology degree at Reed College, I was curious about cannabis. I searched the medical school library for information about cannabis and found only statements that it was a “drug of abuse”. What does that mean? It doesn’t tell you anything about what it does. What are the effects of marijuana?
We now know that marijuana has many uses. A recent report from the Center for Medicinal Cannabis Research (CMCR) in California has proven that smoked marijuana is effective in treating chronic nerve pain and muscle spasms in patients who were not adequately treated by other medicines. This government supported research confirms the results of previous studies. Those who scoff at the medical effectiveness of Cannabis don’t have a leg to stand on.
Our Federal laws must change to accept reality. Marijuana is an effective medicine. Political resistance to removing criminal sanctions from the use of marijuana will not be tolerated. Discrimination against people who possess marijuana is ending. Discrimination against people who grow marijuana is ending. Discrimination against people who like marijuana is ending.
But how do we get the change we must have to complete this journey? It is not enough to say that the States should be free to regulate medical marijuana. Federal law must change. The Medical Marijuana Patient Protection Act must be passed.
You can help by sending letters, emails, faxes and calling your Senators and Representatives. Tell them that you are upset by the actions of the DEA (Drug Enforcement Administration). Tell them that it’s not OK to arrest people who are legally growing and distributing medical marijuana.
With the addition of New Hampshire and Illinois this year, we now have medical marijuana laws in 20 states and the District of Columbia. This year Oregon is writing the rules which will allow people to buy medical marijuana at licensed dispensaries. We will be able to help people by identifying the cannabinoids in various strains of cannabis. The natural cannabinoid delta-9-tetrahydrocannabivarin (Delta-9-THCV) decreases seizure activity in a rat model of epilepsy. Which variety of marijuana has the highest THCV level? Cannabidiol (CBD) has anti-psychotic properties. Which strain is the best source of CBD? Right now, there is no way to find out except by trial and error. With licensed dispensaries, we will be able to have each strain tested. Patients will be able to buy marijuana that they know will work for their condition.
Young people today are discovering that marijuana is good medicine for psychological problems. Soldiers returning from Iraq and Afghanistan find that cannabis relieves the symptoms of Post-Traumatic Stress Disorder (PTSD). Many people find that it helps them deal with their anger. Marijuana improves cognitive ability in patients with bipolar disorder and schizophrenia. It helps people with obsessive-compulsive disorder to forget, and to laugh, at their own obsessions and compulsions. Marijuana treats the anxiety, lack of attention and impulsivity associated with Attention Deficit / Hyperactivity Disorder (ADHD) and it works better than any other medicine for many autistic children as well as adults.
Washington and Colorado have legalized marijuana for all adults. This change allows people to use marijuana in social situations as an alternative to alcohol. People who have problems with alcohol will be able to deal with social anxiety by using marijuana instead of alcohol.
Arresting people for marijuana makes no sense. But we arrested more than 800,000 people for marijuana in 2008 and every year we are arresting more people than the year before. Legal marijuana will allow law enforcement to spend their time and resources on violent behavior. Marijuana is known for its ability to calm agitated people. Alcohol is known for the violent behavior that excessive use can cause.
Marijuana is an attitude adjustment. It stimulates creative thinking. In addition to its physical effects, marijuana helps people psychologically. It enables people to feel a sense of well-being.
So much of what we are told about marijuana is based on false assumptions. A new federal research project is looking for a negative effect of THC in mice. Recently, the NIDA (National Institute of Drug Abuse) stated that they were not interested in funding research intended to find positive effects of marijuana. Since the NIDA controls all marijuana research in the US, we must rely on scientists in other countries to look for the benefits of marijuana. Our tax dollars are being spent on moralizing under the guise of medical research.
We cannot afford the financial and social cost of marijuana prohibition. We can limit the recreational use of marijuana by minors, but our current policy makes it easier for minors to get marijuana than alcohol or cigarettes. An ineffective policy does not deserve to survive. Our marijuana policy has not reduced teen marijuana use. It has increased it. We cannot continue to pretend that good intentions are all that matters.
The cannabis plant has many valuable uses. It makes no sense to ignore the benefits of cannabis, hemp, marijuana in the modern world.
Alabama: Considering a medical marijuana law.
Arkansas: Considering a medical marijuana law.
Idaho: Considering a medical marijuana law.
Illinois: Passed a medical marijuana law.
Indiana: Considering a medical marijuana law.
Iowa: Considering a medical marijuana law.
Maryland: Considering a medical marijuana law.
Minnesota: Considering a medical marijuana law.
Missouri: Considering a medical marijuana law.
New Hampshire: Passed a medical marijuana law.
New York: Considering a medical marijuana law.
North Carolina: Considering a medical marijuana law.
Ohio: Considering a medical marijuana law.
Pennsylvania: Considering a medical marijuana law.
South Carolina: Considering a medical marijuana law.
South Dakota: Medical marijuana petition drive underway.
Tennessee: Considering a medical marijuana law.
Texas: Considering a medical marijuana law.
Wisconsin: Considering a medical marijuana law.
Featured Recipe - Tincture by Jay R. Cavanaugh, PhD
Many patients who utilize and benefit from medical cannabis do not wish to smoke due to the perceived health hazards of smoking or for other personal reasons. These patients are in something of a bind. Smoking cannabis delivers the active cannabinoids within seconds. Medicine is absorbed in the lungs and goes directly to the brain and general circulation. The same effect can be achieved with a vaporizer, which is safer than smoking burning vegetable matter. Since the effects of inhaled cannabis are so quick, it is easy for patients to titrate their dose by simply waiting a minute or two in between puffs.
Oral cannabis, such as our Better Bud Butter, is absorbed in a very different fashion from smoking or inhalation. The GI tract gradually absorbs Cannabinoids over the course of one to two hours. Medicine is processed first by the liver, which converts some cannabinoids such as delta nine to delta 11 version of THC. Orally delivered cannabis requires four to ten times the amount of the smoked version in order to achieve the same effect. Orally delivered cannabis can present a problem in achieving the required or desired dose level in any consistent fashion.
Tincture is designed to address the problems of rapid medicine delivery and consistent dosing. Most tinctures are made to be used under the tongue or sublingually. English pharmaceutical companies are presently working on a cannabis extract "spray" that can be used under the tongue in a similar fashion. These sprays are not expected to be approved for use in the United States for years and will be very expensive. Absorption by the arterial blood supply under the tongue is completed in seconds. One trick is to not swallow the dose as, if swallowed, absorption will be in the GI tract. Many patients, though, add their tincture to a cup of tea or cranberry juice for easy delivery. When tincture is used in a beverage, absorption will be slower than if absorbed under the tongue. While tincture absorbed in an empty stomach is accomplished in minutes, conversion in the liver remains, as does the difficulty in titrating dose. Usually, a tincture dose is delivered by means of a medicine dropper or a teaspoon. A rule of thumb on dose is that patients receive benefit from 3-4 drops to a couple of full droppers depending upon the potency of the tincture and the patient’s own unique requirements among other factors.
The methods listed below will detail two major methods of preparing tincture. While the methods are optimized for purity and potency, ultimately these will largely be determined by the purity and potency of the cannabis from which the tincture is made. Another item of note in regard to starting material for tincture is the patient or caregiver selection of strain. A rough rule of thumb is to select Indica dominant strains for cramping and muscle spasticity and Sativa dominant strains for pain relief. The reality, though, is often that the strain is unknown or not well characterized. Trial and error is usually required to acquire the appropriate strain and the proper dose level.
Tincture is an extraction of active cannabinoids from plant material. Cannabis contains many chemicals that can either upset the stomach or taste nasty. One of the goals of extraction is to secure the cannabinoids while leaving out as many of the terpenes and chlorophylls as possible. Both heat and light adversely effect cannabinoids and should be avoided or minimized. Tincture should be stored in airtight dark glass containers kept at room temperature or below. Avoid plastic containers. The ethanol in the tincture may solubilize some of the free vinyls in the plastic.
Cold Method with Ethanol
Making tincture cold preserves the integrity of cannabinoids. To be potent, this method requires starting material high in cannabinoid content such as flowers or kief made from trim and leaf. The material must be mold free and dry. Drying can be accomplished in the freezer (-4-10 degrees Celsius) or better yet by placing in a liquid proof bag into a dry ice/ethanol ice bath (-70 degrees Celsius). Once water has been removed then the surface area of the starting material requires expansion. This can be accomplished a number of ways but two ways stand out:
Using flowers (bud)- Place dried buds in a coffee grinder and pulse until thoroughly ground but not powdered.
Making kief- Rub dry trim and leaves over a silk screen. Collect the powder the comes through the screen. It should be a very pale green. "Kiefing" is an age old way of extracting trichomes from plant material.
Whether kief or ground bud is used both should kept ice cold for this preparation. Similarly, the ethanol to be used should also be ice cold throughout the process.
Selection of alcohol- ethanol or ethyl alcohol is the form of alcohol that can be used by humans. The proof listed on commercial alcohol refers to the percentage of ethanol that the beverage contains. The proof is twice the percentage, so 80 "proof" means that the mixture contains 40% ethanol. The higher the alcohol content used, the better the extraction will work. Ideally, 200 proof ethanol would be best except that ethanol cannot be distilled to this proof so benzene is used to remove the last vestiges of water. This makes "pure" ethanol poisonous.
Many folks use "Everclear" which stands at 190 proof or 95% ethanol. Everclear has no taste. Apparently, Everclear is not available in all States. A close second choice is 151 proof rum. This is a light amber liquid that is 75% ethanol that has a sweet taste. One of our caregiver writers will use nothing but Korbel brandy because she likes the taste. Others use iced Russian vodka. These "normal" distilled spirits are 40% to 50% ethanol. Some patients find that the higher proofs ethanols like Everclear and 151 rum burn too much under the tongue. If burning is a concern consider a high quality 90-100 proof Vodka.
Cold Extraction and purification- Use at least one ounce of starting material to each pint of ethanol. Place cold powdered kief or ground cannabis flowers together with ethanol in a glass quart-mixing jar. Close the jar tightly and vigorously shake for five minutes then return to the freezer. Continue to agitate the mixture every few hours with refreezing. Continue for a period of two to three days.
Pour the cold mixture through a double thickness of sterile cheesecloth. Save the cheesecloth "ball" for topical uses or use the material to make bud butter once dried. The liquid collected through the cheesecloth should then be filtered twice through a paper coffee filter. Use gloves throughout the process, as it is necessary to squeeze the cheesecloth and coffee filters to facilitate the extraction. Without gloves some of the material will be absorbed on the skin.
If Everclear is used the tincture will be pale green to golden. If 151 rum is used an amber tincture results. Dark green tinctures mean that excess plant material is present. This does not mean that the tincture will not be potent, just taste nasty. When Everclear is used, various flavor extracts may be added (vanilla, raspberry, etc.). Be careful to use only a few drop of flavor extract.
Traditional or Warm MethodThe old fashioned (and effective) way to make tincture from trim, leaf or "shake" is to grind the plant material to expose surface area. A fine grind is not needed and will just make the tincture cloudy. A rough chop will do. Most folks can’t afford to use kief or bud for tincture but may have leaf handy. If so, this is the way to go. Use ethanol as described above in the same proportions. The key difference is that in this preparation the materials are kept warm (not hot). Light must be avoided.
Place the ethanol and chopped cannabis in a large glass Mason jar. Shake at least once a day. Place the jar in a brown paper bag or otherwise shield the jar from light. Leave in a warm spot (near a window) for 30-60 days. The mixture will turn a very dark green. Strain as previously described through cheesecloth. Save the "shake ball" for topical applications.
While this method produces a nasty tasting tincture, it is powerful. It may upset some fragile stomachs. It is recommended that Warm Tincture be used orally in cranberry juice or coffee with sugar. Keep the filtered tincture in light blocking glass jars or bottles in a cool dry place (refrigerator or freezer is fine). The shake ball should also be kept in the freezer. For topical applications, just take out the cold shake ball and apply a few drops of fresh tincture to the cloth then hold it on the affected area for a few minutes with gentle rubbing.
April 26-28, 2012
Tucson, AZ USA
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