Current Study: CBD Effective Against Alcohol Addiction - With Limitations
|
Time to read 5 min
CBD (Cannabidiol), a natural cannabinoid, may be able to help with alcohol addiction – at least that's the finding of a recent study in the journal Nature. (1)
The following article explains exactly how CBD can help with what is known as alcohol use disorder and how reliable the study's findings truly are.
The most important things at a glance
The ICONIC study by ZI Mannheim showed that CBD can significantly reduce craving - i.e. the strong desire for alcohol - in alcohol-dependent individuals. Participants reported feeling less desire for alcohol after taking CBD.
Functional magnetic resonance imaging (fMRI) also showed that the brain's reward center reacted less strongly to alcohol-related stimuli after CBD intake.
The study was conducted on a very small and homogeneous group of people, and CBD was administered only once. Further studies with more participants and therapeutic experience are needed before CBD can be widely used as a treatment for alcohol addiction.
Alcohol addiction - still underestimated (unfortunately)
Alcohol is the most commonly consumed psychoactive substance in Germany. According to the Federal Government's Commissioner for Drugs, 87% of all people aged 18 to 59 alone have consumed alcohol on at least one occasion in the last 12 months. (2)
Frequent and regular alcohol consumption often leads to serious illnesses (e.g. of the liver), but also to an addiction that goes far beyond "acceptable" alcohol consumption.
Good to know
Alcohol addiction is when a person meets three or more of the following criteria within a year:
- strong craving for alcohol,
- loss of control over consumption,
- physical withdrawal symptoms,
- tolerance development,
- neglect of other interests in favor of alcohol consumption and
- continued consumption despite negative consequences.
Alcohol abuse and addiction often have serious psychological, social and physical consequences for those affected. Once addicted to alcohol, those affected cannot get rid of the drug. Withdrawal is very difficult, and relapses are common.
CBD against alcohol addiction: what the study says
As part of the ICONIC study, scientists from the renowned Central Institute of Mental Health in Mannheim investigated how CBD consumption affects patients with alcoholism.
Cannabidiol (CBD) has been intensively researched for a long time, as it is said to have many different positive effects. CBD is a natural component of the cannabis plant. It particularly affects the endocannabinoid system ( ECS ), a kind of control center in the brain and nervous system, and regulates the activity of receptors there. This can contribute to the relief of pain and inflammation, among other things.
At the same time, the cannabis active ingredient could offer effective support for addictions such as alcohol dependence. The reason for this is also the effect of CBD on brain activity: according to the authors of the ICONIC study, CBD affects the pleasure or reward center in the brain, the nucleus accumbens (NAc).
Study Design
A total of 28 people between 18 and 60 years of age with mild to moderate diagnosed alcohol use disorder participated in the study. Before the study began, they were divided into a control group (placebo group) and a group that received 800 mg of CBD daily.
After three hours, the participants were exposed to various situations and tests. These included tests in which the subjects were exposed to alcohol stimuli (e.g., photos with alcoholic beverages or alcohol brands). They were also asked to spend time in a simulated bar environment.
The aim of the scientists was to trigger a "craving" in the subjects, i.e., a strong, urgent desire for alcohol.
Study results
The individuals were then asked to rate their desire for alcohol and some other points via a questionnaire. In addition, their brain activity (especially in the nucleus accumbens) was measured by fMRI (functional magnetic resonance imaging).
The results were quite clear: not only was the subjectively perceived desire for alcohol within the CBD group significantly reduced. The brain's reward center was also less active after CBD consumption, which also suggests a lower craving.
CBD oils from hanfgefluester
Limitations
No question: The ICONIC study is groundbreaking when it comes to the effect of CBD on the psyche of addiction patients and a possible treatment for the disease. But: The scientists themselves point out that their study has some important limitations. Further research is essential to confirm the results and to investigate more precisely which dosages and forms of administration are ideal.
The researchers themselves mention the following points:
Limitation |
Explanation |
Future research |
|---|---|---|
Short-term single-dose design |
Only a single dose of 800 mg CBD; no statement about long-term effects possible |
Investigate effects with repeated CBD administration over several weeks |
Small sample size |
Only 28 participants in total; low statistical significance |
Investigate larger groups |
Stress cue sequence before fMRI |
A stress/cue session was conducted before the brain scan, which can influence brain responses |
Isolate scanner design; potentially perform baseline scans |
Limited generalizability |
Participants were relatively homogeneous (alcohol addiction without severe comorbidities) |
Inclusion of more clinically diverse groups (e.g., with comorbidities, medication, etc.) |
No measure of consumption behavior |
Only alcohol craving was measured, not actual alcohol consumption or relapse rates |
Long-term studies measuring relapse rates, abstinence, consumption diary, etc. |
Caution is still advised
Even if the study raises great hopes among those affected: people with alcohol addiction in particular should be careful with active ingredients such as CBD.
Many alcohol-dependent people are undergoing medication treatment - for example, with antidepressants, antiepileptics or relapse prevention medications such as naltrexone or acamprosate. CBD can interact with such medications via liver enzymes (especially CYP450) and either weaken or strengthen their effect.
In addition, many lower-quality CBD products may contain excessive amounts of THC. While CBD itself is not addictive, this psychoactive ingredient of the hemp plant can pose a serious risk for people at risk of addiction: THC can not only lead to addiction, but also exacerbate severe symptoms such as anxiety or paranoia.
Alcoholic individuals should therefore under no circumstances use CBD on their own for addiction therapy, but always only within the framework of medically supervised, controlled applications - currently these are mainly medical studies. In general psychotherapeutic practice for the treatment of alcohol addiction, CBD is currently hardly used.
Our conclusion: More research needed
The ICONIC study provides promising initial evidence that cannabidiol (CBD) can play a supportive role in the treatment of alcohol addiction. Through its effect on the brain's reward system, CBD appears to dampen alcohol cravings and reduce sensitivity to so-called alcohol cues.
Nevertheless, caution is advised: The study was based on a very small number of participants and only examined the acute effect of a single dose. Long-term effects, changes in consumption and possible interactions with other medications have hardly been researched so far. People with an alcohol dependency should therefore only use CBD under medical/therapeutic supervision.
Opinions of our customers:
Sources and Studies
(1) Zimmermann, S., Teetzmann, A., Baeßler, J., Schreckenberger, L., Zaiser, J., Pfisterer, M., Stenger, M., & Bach, P. (2025). Acute cannabidiol administration reduces alcohol craving and cue-induced nucleus accumbens activation in individuals with alcohol use disorder: the double-blind randomized controlled ICONIC trial. Molecular psychiatry, 30(6), 2612–2619.
(2) https://www.bundesgesundheitsministerium.de/service/begriffe-von-a-z/a/alkohol.html
