Cannabis use is a frequently-discussed subject, not just in the realm of so-called alternative medicine (SCAM). In general, SCAM advocates view it as an herbal medicine and recommend it for all sorts of conditions. They also often downplay the risks associated with cannabis use. Yet, these risks might be substantial.
Cannabis potency, defined as the concentration of Δ9-tetrahydrocannabinol (THC), has increased internationally, which could increase the risk of adverse health outcomes for cannabis users. The first systematic review of the association of cannabis potency with mental health and addiction was recently published in ‘The Lancet Psychiatry’.
The authors searched Embase, PsycINFO, and MEDLINE (from database inception to Jan 14, 2021). Included studies were observational studies of human participants comparing the association of high-potency cannabis (products with a higher concentration of THC) and low-potency cannabis (products with a lower concentration of THC), as defined by the studies included, with depression, anxiety, psychosis, or cannabis use disorder (CUD).
Of 4171 articles screened, 20 met the eligibility criteria:
- eight studies focused on psychosis,
- eight on anxiety,
- seven on depression,
- and six on CUD.
Overall, higher potency cannabis, relative to lower potency cannabis, was associated with an increased risk of psychosis and CUD. Evidence varied for depression and anxiety. The association of cannabis potency with CUD and psychosis highlights its relevance in healthcare settings, and for public health guidelines and policies on cannabis sales.
The authors concluded that standardisation of exposure measures and longitudinal designs are needed to strengthen the evidence of this association.
The fact that cannabis use increases the risk of psychosis has long been general knowledge. The notion that the risk increases with increased potency of cannabis seems entirely logical and is further supported by this systematic review. Perhaps it is time to educate the public and make cannabis users more aware of these risks, and perhaps it is time that SCAM proponents negate the harm cannabis can do.
Cannabis seems often to be an emotional subject where more heat than light is generated. Does it work for chronic pain? This cannot be such a difficult question to answer definitively. Yet, systematic reviews have provided conflicting results due, in part, to limitations of analytical approaches and interpretation of findings.
A new systematic review is therefore both necessary and welcome. It aimed at determining the benefits and harms of medical cannabis and cannabinoids for chronic pain. Included were all randomised clinical trials of medical cannabis or cannabinoids versus any non-cannabis control for chronic pain at ≥1-month follow-up.
A total of 32 trials with 5174 adult patients were included, 29 of which compared medical cannabis or cannabinoids with placebo. Medical cannabis was administered orally (n=30) or topically (n=2). Clinical populations included chronic non-cancer pain (n=28) and cancer-related pain (n=4). Length of follow-up ranged from 1 to 5.5 months.
Compared with placebo, non-inhaled medical cannabis probably results in a small increase in the proportion of patients experiencing at least the minimally important difference (MID) of 1 cm (on a 10 cm visual analogue scale (VAS)) in pain relief (modelled risk difference (RD) of 10% (95% confidence interval 5% to 15%), based on a weighted mean difference (WMD) of −0.50 cm (95% CI −0.75 to −0.25 cm, moderate certainty)). Medical cannabis taken orally results in a very small improvement in physical functioning (4% modelled RD (0.1% to 8%) for achieving at least the MID of 10 points on the 100-point SF-36 physical functioning scale, WMD of 1.67 points (0.03 to 3.31, high certainty)), and a small improvement in sleep quality (6% modelled RD (2% to 9%) for achieving at least the MID of 1 cm on a 10 cm VAS, WMD of −0.35 cm (−0.55 to −0.14 cm, high certainty)). Medical cannabis taken orally does not improve emotional, role, or social functioning (high certainty). Moderate certainty evidence shows that medical cannabis taken orally probably results in a small increased risk of transient cognitive impairment (RD 2% (0.1% to 6%)), vomiting (RD 3% (0.4% to 6%)), drowsiness (RD 5% (2% to 8%)), impaired attention (RD 3% (1% to 8%)), and nausea (RD 5% (2% to 8%)), but not diarrhoea; while high certainty evidence shows greater increased risk of dizziness (RD 9% (5% to 14%)) for trials with <3 months follow-up versus RD 28% (18% to 43%) for trials with ≥3 months follow-up; interaction test P=0.003; moderate credibility of subgroup effect).
The authors concluded that moderate to high certainty evidence shows that non-inhaled medical cannabis or cannabinoids results in a small to very small improvement in pain relief, physical functioning, and sleep quality among patients with chronic pain, along with several transient adverse side effects, compared with placebo.
This is a high-quality review. Its findings will disappoint the many advocates of cannabis as a therapy for chronic pain management. The bottom line, I think, seems to be that cannabis works but the effect is not very powerful, while we have treatments for managing chronic pain that are both more effective and arguably less risky. So, its place in clinical routine is debatable.
Cannabis is, of course, a herbal remedy and therefore belongs to so-called alternative medicine (SCAM). Yet, I am aware that the medical cannabis preparations used in most studies are based on single cannabinoids which makes them conventional medicines.
Post-traumatic stress disorder (PTSD), previously known as battle fatigue syndrome or shell shock, is a condition that can be triggered by the experience of some frightening event. PTSD can be debilitating leading to the production of feelings of helplessness, intense fear, and horror. Numerous treatments of PTSD exist but few have been shown to be truly effective. A team of Canadian researchers explored the effects of cannabis on PTSD symptoms, quality of life (QOL), and return to work (RTW). Their systematic review also investigated harms such as adverse effects and dropouts due to adverse effects, inefficacy, and all-cause dropout rates.
Their electronic searches located one RCT and 10 observational studies (n = 4672). Risk of bias (RoB) was assessed with the Cochrane risk of bias tool and ROBINS-I. Evidence from the included studies was mainly based on studies with no comparators. Results from unpooled, high RoB studies suggested that cannabis was associated with a reduction in overall PTSD symptoms and improved QOL. Dry mouth, headaches, and psychoactive effects such as agitation and euphoria were the most commonly reported adverse effects. In most studies, cannabis was well tolerated. A small proportion of patients experienced a worsening of PTSD symptoms.
The authors concluded that the evidence in the current study primarily stems from low quality and high RoB observational studies. Further RCTs investigating cannabis effects on PTSD treatment should be conducted with larger sample sizes and explore a broader range of patient-important outcomes.
Various drugs are currently used for the treatment of PTSD including selective serotonin reuptake inhibitors; tricyclic antidepressants (amitriptyline and isocarboxazid); mood stabilizers (Divalproex and lamotrigine); atypical antipsychotics (aripiprazole and quetiapine) but their effectiveness has not been proven. A recent systematic review included 30 RCTs of a range of heterogeneous non-psychological and non-pharmacological interventions. There was emerging evidence for 6 different approaches:
- saikokeishikankyoto (a herbal preparation),
- somatic experiencing,
- transcranial magnetic stimulation,
This list makes me wonder: are these treatments, including cannabis, truly promising, or is PTSD one of those conditions for which nearly every treatment works a little because of its placebo effect?
It was a BBC journalist who alerted me to this website (and later did an interview to be broadcast today, I think). Castle Treatments seem to have been going already for 12 years; they specialise in treating drug and alcohol dependency. And they are very proud of what they have achieved:
“We are the U.K.’s leading experts in advanced treatments to help clients to stop drinking, stop cocaine use and stop drug use. Over the last 12 years we have helped over 9,000 private clients stop using: alcohol, cocaine, crack, nicotine, heroin, opiates, cannabis, spice, legal highs and other medications…
All other treatment methods to help people stop drinking or stop using drugs have a high margin for error and so achieve very low success rates as they use ‘slow and out-dated methods’ such as talking therapies (hypnosis, counselling, rehab, 12 steps, CBT etc) or daily medications (pharma meds, sprays, opiates, subutex etc) which don’t work for most people or most of the time.
This is because none of these methods can remove the ’cause’ of the problem which is the ‘frequency of the substance’ itself. The phase signal of the substance maintains the craving or desire for that substance, once neutralised the craving/desire has either gone or is greatly diminished therefore making it much easier to stop drinking or using drugs as per the client feedback.
When compared to any other method there is no doubt our treatments produce the best results. Over the last 12 years we have helped over 9,000 clients the stop drinking, stop cocaine use or stop using drugs with excellent results as each client receives exactly the same treatment program tailored to their substance(s) which means our success rates are consistently high, making our advanced treatment the logical and natural choice when you want help.
Our technicians took basic principles in physics and applied them to new areas to help with addiction and dependency issues. Our treatment method uses specific phase signals (frequency) to help:
- neutralise any substance and reduce physical dependency
- improve and restore physical & mental health
When the substance is neutralised, the physical urge or craving has ‘gone or is greatly diminished’ therefore making it much easier to stop drinking or using drugs. The body can also absorb beneficial input frequencies so physically and mentally our clients ‘feel much better‘ and so find it much easier to ‘stop and regain control’…
The body (muscle, tissue, bones, cells etc) radiate imbalances including disease, physical, emotional and psychological conditions which have their own unique frequencies that respond to various ‘beneficial input frequencies’ (Hz) or ‘electroceuticals’ which can help to improve physical and mental health hence why our clients feel so much better during/after treatment…”
END OF QUOTE
To me this sounds like nonsense on stilts.
Bioresonance is, as far as I can see, complete baloney. It originates from Germany and uses an instrument that is not dissimilar to the e-meter of scientology (its inventor had links to this cult). This instrument is supposed to pick up unhealthy frequencies from the body, inverses them and thus treats the root cause of the problem.
There are two seemingly rigorous positive studies of bioresonance. One suggested that it is effective for treating GI symptoms. This trial was, however, tiny. The other study suggested that it works for smoking cessation. Both of these articles appeared in a CAM journal and have not been independently replicated. A further trial published in a conventional journal reported negative results. In 2004, I published an article in which I used the example of bioresonance therapy to demonstrate how pseudo-scientific language can be used to cloud important issues. I concluded that it is an attempt to present nonsense as science. Because this misleads patients and can thus endanger their health, we should find ways of minimizing this problem (I remember being amazed that a CAM journal published this critique). More worthwhile stuff on bioresonance and related topics can be found here, here and here.
There is no good evidence that bioresonance is effective for drug or alcohol dependency (and even thousands of testimonials do not amount to evidence: THE PLURAL OF ANECDOTE IS ANECDOTES, NOT EVIDENCE!!!). Claiming otherwise is, in my view, highly irresponsible. If I then consider the fees Castle Treatments charge (Alcohol Support: Detox 1: £2,655.00, Detox 2: £3,245.00, Detox 3: £3,835.00) I feel disgusted and angry.
I hope that publishing this post somehow leads to the closure of Castle Treatments and similar clinics.
Guest post by Michelle Dunbar
According to the CDC, more than 30,000 people died as a result of a drug overdose in 2010. Of those deaths none were attributed to marijuana. Instead the vast majority were linked to drugs that are legally prescribed such as opiates, anti-depressants, anti-psychotics, tranquilizers and benzodiazepines. As misuse and abuse of prescription medications continues to rise, the marijuana legalization debate is also heating up.
Nearly 100 years of propaganda, fear mongering and blatant misinformation regarding marijuana has taken its toll on our society. As the veil of lies surrounding marijuana is being lifted, more and more people are pushing for legalization. Marijuana is now legal for both medicinal and recreational use in two states and other states are introducing legislation of their own. Marijuana is approved for medicinal use with a prescription in 21 states and also Washington, D.C. with most other states expected to introduce legislation to approve use for medicinal purposes in the next few years.
Last year Dr. Sanjay Gupta, the medical correspondent for CNN, aired a controversial documentary, “Weed”, where he showed various promising medicinal uses for marijuana. He admits that he was wrong for many years about marijuana legalization, and after doing his own extensive research he is encouraged by the many real life cases he has seen where people with chronic, serious medical issues have been and continue to be helped by marijuana. He noted that marijuana does not have the dangerous side effects that many prescription medications do and that it is actually safer than many drugs being prescribed today. Dr. Gupta said in the program that there is not one documented case where death was due to marijuana overdose and he is right.
But as with any systematic paradigm shift, there will always be those whose minds are closed to change. So as the march toward legalization continues, there is new anti-legalization propaganda being written and spread through mainstream and social media. There have been multiple reports out of Colorado that there are now deaths attributed to marijuana overdose. Some say children were involved which automatically evokes feelings of fear in parents across the country. But when I tried to find more reliable sources to verify these articles, none existed. The AP reported on April 2 that a Wyoming college student jumped to his death in Colorado after eating a marijuana cookie while on Spring Break in Colorado. The autopsy listed marijuana intoxication as a “significant contributing factor” in the teen’s death. (Gurman)
Like alcohol, Colorado bans the sale of marijuana and marijuana edibles to people under the age of 21. But much like alcohol, teens that want to get it will always find a way. This young man was just 19, and his death has been ruled accidental. While it is true his death is tragic, is it a reason to reverse the course with marijuana? If you believe this is the case then you must consider the real dangers posed by alcohol. Many people who would like to see marijuana legalized say that it is much safer than the legal drug alcohol. Based solely on the numbers of hospitalizations and deaths, especially with young people, they would be right.
According to an article posted on Forbes.com in March of this year, “1,825 college students between the ages of 18 and 24 die each school year from alcohol-related unintentional injuries.” The author, Dr. Robert Glatter, MD attributes these deaths to one of the leading health risks facing our young people, and that is binge drinking. This number is quite small in comparison to emergency room visits and hospitalizations of young people that are a direct result of alcohol use.
Taking the most heat are the marijuana edibles that are now for sale in states where marijuana has become legal. The concern is that children are eating marijuana laced candy and baked goods and becoming ill. This would seem to be confirmed by an article in USA Today that reported that calls to the Rocky Mountain Poison Control is Colorado regarding marijuana ingestion in children had risen to 70 cases last year. While they admitted that this number was low, it was the rapid rise from years previous that caused concern. To put this in perspective, there are approximately 1.4 million pediatric poisonings each year involving prescription medications not including marijuana. (Henry, et.al) That is an average of approximately 28,000 calls per state. Tragically several hundreds of these cases result in deaths of these children, with the highest rates of death involving narcotics, sedatives and anti-depressants. (Henry, et.al.)
Of those 70 cases reported in Colorado involving marijuana, none resulted in death. The results are quite clear marijuana is as safe as prescription drugs are dangerous. For those who want to weigh in on the marijuana legalization debate, it is important to do your research, look at the big picture and put everything in perspective. Alcohol is legal and heavily regulated, yet its use is linked to thousands of deaths each year. Prescription drugs are legal and heavily regulated, yet they too are linked to thousands of deaths each year. Marijuana, on the other hand, is not legal and not available in much of the country, and thus far has not caused one death from overdose ever.
Additionally, research is showing marijuana has promise in treating many diseases more effectively and safely than dangerous prescription medications being used today. From cancer to epilepsy to depression and anxiety, to chronic autoimmune diseases, scientists are just scratching the surface when it comes to the potential life-changing and perhaps even, life-saving uses for marijuana.
Drug Overdose in the United States: Fact Sheet. (2014, February 10). Centers for Disease Control and Prevention. Retrieved May 4, 2014, from http://www.cdc.gov/homeandrecreationalsafety/overdose/facts.html
Glatter, R. (2014, March 11). Spring Break’s Greatest Danger. Forbes. Retrieved May 5, 2014, from http://www.forbes.com/sites/robertglatter/2014/03/11/spring-breaks-greatest-danger/
Gurman, S. (2014, April 2). Young man leaps to death after eating pot-laced cookie. USA Today. Retrieved May 5, 2014, from http://www.usatoday.com/story/news/nation/2014/04/02/marijuana-pot-edible-death-colorado-denver/7220685/
Henry, K., & Harris, C. R. (2006). Deadly Ingestions. Pediatric Clinics of North America, 53(2), 293-315.
Hughes, T. (2014, April 2). Colo. Kids getting into parents’ pot-laced goodies. USA Today. Retrieved May 5, 2014 from http://www.usatoday.com/story/news/nation/2014/04/02/marijuana-pot-edibles-colorado/7154651/