CBD reduced the rewarding effects and anxiety from the synthetic stimulant MDPV in mice, with complex results | Research

The takeaway

CBD mitigated the rewarding effects of MDPV (a "bath salt" stimulant) in mice and reduced MDPV-induced anxiety, but unexpectedly increased drug-seeking in high-responding mice during self-administration.

Addiction researchers, toxicologists treating synthetic cathinone users, and scientists studying CBD as a potential addiction treatment.

CBD reduced MDPV reward but increased self-administration in high responders

What the researchers found

CBD (20 mg/kg) reduced MDPV-induced conditioned place preference. CBD showed anxiolytic effects in MDPV-treated mice on the elevated plus maze. However, during self-administration of high-dose MDPV, CBD increased drug-seeking and taking in the high-responder subgroup. These complex results suggest CBD modulation of stimulant effects varies by behavioral context.

Why it matters

Synthetic cathinones ("bath salts") are dangerous and lack effective treatments. CBD showed promise in reducing reward and anxiety but the increased self-administration in some mice highlights the complexity of using CBD for addiction.

The numbers in context

CBD 20 mg/kg. MDPV 2 mg/kg for CPP, 0.05-0.075 mg/kg/infusion for self-administration. CBD reduced CPP. CBD increased self-administration only in high-responders at higher MDPV dose. CBD anxiolytic only in MDPV-treated, not vehicle-treated mice.

How the study worked

Mouse models of conditioned place preference (MDPV 2 mg/kg), self-administration (MDPV 0.05 and 0.075 mg/kg/infusion), and elevated plus maze. CBD (20 mg/kg) administered alongside MDPV. Self-administration mice analyzed by responder subgroups.

What this study cannot tell us

Animal study. Only one CBD dose tested. The high-responder subgroup finding should be interpreted cautiously given small group sizes. Self-administration paradigm may not reflect human patterns of bath salt use.

How to read the evidence

Preclinical study with multiple behavioral paradigms, but complex and partly contradictory results across tests.

When this study was published

2021 animal study. Highlights the complexity of using CBD to modulate stimulant addiction.

The bigger picture

The paradoxical findings across different behavioral tests underscore that CBD effects on addiction are not uniformly beneficial and may depend on individual vulnerability and the type of drug-seeking behavior being measured.

Questions still open

Why did CBD increase drug-seeking in high responders? Would different CBD doses or timing produce more consistent results? Could CBD be beneficial for specific aspects of stimulant addiction (reward vs. anxiety) but not others?

Common questions

What is MDPV?

MDPV (3,4-methylenedioxypyrovalerone) is a synthetic cathinone commonly found in "bath salts." It has cocaine-like stimulant properties and high abuse potential.

Could CBD help treat bath salt addiction?

Results were mixed. CBD reduced the rewarding properties of MDPV and its anxiety effects, but increased drug-seeking in a subset of mice. More research is needed before any clinical application.

Read the original research

Cannabidiol Modulates the Motivational and Anxiety-Like Effects of 3,4-Methylenedioxypyrovalerone (MDPV) in Mice.

International journal of molecular sciences, 22(15)

View on PubMed ↗Publisher’s paper ↗

Citation

Alegre-Zurano, Laia; López-Arnau, Raúl; Luján, Miguel Á; Camarasa, Jordi; Valverde, Olga. (2021). Cannabidiol Modulates the Motivational and Anxiety-Like Effects of 3,4-Methylenedioxypyrovalerone (MDPV) in Mice.. International journal of molecular sciences, 22(15). https://doi.org/10.3390/ijms22158304