CBD reduced nicotine self-administration and eased withdrawal symptoms in mice | Research

The takeaway

CBD decreased the number of nicotine doses mice chose to take, reduced physical withdrawal symptoms, and prevented nicotine-related pain sensitivity, without affecting food intake.

People interested in CBD therapeutic potential and nicotine cessation strategies.

CBD reduced nicotine intake without affecting food consumption

What the researchers found

CBD produced a significant decrease in nicotine self-administration across multiple CBD doses and both low and moderate nicotine levels. CBD did not affect food pellet self-administration, indicating the effect was specific to nicotine. CBD also attenuated somatic withdrawal signs and prevented nicotine withdrawal-induced hyperalgesia (increased pain sensitivity).

Why it matters

Existing nicotine cessation medications have limited long-term success rates. CBD showing efficacy against both nicotine intake and withdrawal symptoms in mice suggests it could be explored as a novel cessation aid, targeting multiple aspects of tobacco dependence.

The numbers in context

CBD reduced nicotine rewards earned at multiple doses. Effect observed at both low and moderate nicotine intake levels. No effect on food pellet self-administration. CBD attenuated somatic withdrawal signs and blocked withdrawal-induced hyperalgesia.

How the study worked

Male and female mice were trained to self-administer intravenous nicotine at low or moderate doses. CBD was given as pretreatment before drug-taking sessions. Separate experiments tested CBD effects on food self-administration (to rule out motor effects) and on precipitated nicotine withdrawal symptoms.

What this study cannot tell us

Mouse model may not translate to human nicotine addiction, which involves complex psychological and social factors. Intravenous nicotine delivery does not replicate smoking behavior. Optimal CBD dosing and timing for human cessation are unknown.

How to read the evidence

Preliminary animal study with well-controlled experiments including food-intake controls. Translation to human smoking cessation requires clinical trials.

When this study was published

Published in 2024 in Neuropharmacology.

The bigger picture

Cigarette smoking remains the leading cause of preventable death. The finding that CBD reduces nicotine self-administration and eases withdrawal could open a new avenue for cessation treatment, especially given that CBD is already widely available and generally well-tolerated.

Questions still open

Would CBD help human smokers reduce cigarette consumption? What is the mechanism by which CBD reduces nicotine self-administration? Could CBD be combined with existing cessation medications for enhanced efficacy?

Common questions

Could CBD help people quit smoking?

This mouse study found CBD reduced how much nicotine the animals chose to take and eased withdrawal symptoms. While promising, human clinical trials are needed to determine if CBD can serve as a practical smoking cessation aid.

Did CBD just make the mice less active overall?

No. Mice given CBD still consumed food pellets normally, indicating the reduced nicotine intake was specific to nicotine rather than a general suppression of behavior.

Read the original research

Cannabidiol as a potential cessation therapeutic: Effects on intravenous nicotine self-administration and withdrawal symptoms in mice.

Neuropharmacology, 246, 109833

View on PubMed ↗Publisher’s paper ↗

Citation

Cheeks, Samantha N; Buzzi, Belle; Valdez, Ashley; Mogul, Allison S; Damaj, M Imad; Fowler, Christie D. (2024). Cannabidiol as a potential cessation therapeutic: Effects on intravenous nicotine self-administration and withdrawal symptoms in mice.. Neuropharmacology, 246, 109833. https://doi.org/10.1016/j.neuropharm.2023.109833