Surge in Microdosing Interest Linked to Relaxed Drug Policies – Neuroscience News

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Summary: A new study reveals a 1250% increase in Google searches for micro dosing from 2015 to 2023, driven by relaxed regulations on cannabis and psychedelics. The research shows policy changes correlate with growing interest in microdosing, filling gaps in understanding substance use trends.

Despite limited clinical evidence, public curiosity about microdosing’s potential benefits continues to rise. The study underscores the need for rigorous research to ensure the safety and efficacy of these practices.

Key Facts:

  1. Microdosing-related Google searches surged by 1250% from 2015 to 2023.
  2. The study links increased microdosing interest to relaxed cannabis and psychedelic regulations.
  3. Researchers emphasize the need for clinical studies to establish safety and efficacy.

Source: UCSD

Loosening local, state and federal regulations on cannabis and psychedelics has increased Americans’ interest in microdosing, according to a study from researchers at the University of California San Diego.

Published in JAMA Health Forum, the study found that the rate of microdosing-related Google searches grew by 1250% from 2015 to 2023, with over three million searches in 2023 alone.

This surge in interest correlates with recent legislative changes decriminalizing or authorizing the use of psychedelic substances in therapy and permitting recreational cannabis use.

The research fills a gap in understanding how policy changes affect substance use patterns.

Microdosing involves taking “sub-perceptual” doses of psychedelics, often over prolonged periods, with users claiming it improves cognition, mood and overall health without causing the intense hallucinogenic effects of higher doses.

Despite the lack of clinical evidence supporting these health claims, interest in the practice appears to have grown over the past decade. Current survey data on microdosing are inadequate, prompting the study’s authors to analyze Google search behaviors as a proxy for public interest and to understand how policy reforms have influenced this interest.

The study period coincided with significant policy reforms on substance use. In 2012, Colorado became the first U.S. state to permit recreational cannabis use, and by 2023, 24 states had followed suit, encompassing half of the U.S. adult population.

Additionally, eight states had cities or counties decriminalize psychedelic use, and two states legalized psychedelic-assisted therapy and decriminalized psychedelics statewide.

Using a dynamic event-time difference-in-difference model, the researchers assessed the causal effects of these policy changes. They used the year before a policy enactment as the reference and states that never adopted the policy as controls.

Separate analyses for cannabis and psychedelic policies measured microdosing searches per 10 million Google queries, examining annual and monthly changes in search rates across the U.S.

The results showed that policies reducing criminal penalties for psychedelic and cannabis use were associated with increased interest in microdosing, with the largest increases occurring in states with the most permissive policies, such as Oregon and Colorado. By 2023, these policy reforms accounted for over a quarter of the differences in monthly microdosing search rates across states.

The study also examined trends in terms related to microdosing, such as substances commonly used for microdosing. Between 2015 and 2018, LSD was the top term related to the microdosing, while from 2019 to 2023, mushrooms were most frequently searched. Other terms included Adderall, cannabis, CBD, DMT, ketamine, and MDMA.

The researchers believe these findings reflect a growing societal interest in psychedelics and psychotropic substances as alternative therapies, possibly replacing evidence-based care.

On a federal level, President Biden suggested reclassifying marijuana as a less dangerous drug in 2022, and the Justice Department approved this recommendation in May 2024.

Kevin Yang, M.D., lead author of the study and a psychiatry resident at UC San Diego School of Medicine, believes these actions, along with state and local legislation, indicate a more open attitude toward psychotropics, potentially encouraging scientific investigation.

Yang emphasized the importance of rigorous research, stating, “As public interest in using psychedelics and cannabis for health grows, it’s crucial that the medical community conducts studies to establish a strong evidence base for their safety and efficacy.

Without understanding the risks and benefits, people may turn to unproven alternative therapies, exposing themselves to potential dangers. It’s our responsibility as a medical community to ensure patients have access to safe, effective and evidence-based treatments.”

The authors expressed concern about the market for microdosed products. “Psilocybin and nearly all commonly microdosed substances are Schedule 1 controlled substances. Using these substances poses legal risks for consumers and concerns of product impurity because of a lack of manufacturing standards,” said Eric Leas, Ph.D., M.P.H., assistant professor in the UC San Diego Herbert Wertheim School of Public Health and Human Longevity Science and senior author of the paper.

He noted that products claiming to be “magic mushrooms” for microdosing might not disclose ingredients or could contain harmful substances like Amanita muscaria, which lacks clinical support as a therapy and can be toxic.

The researchers have conducted a nationally representative cross-sectional survey of three commonly microdosed substances for a similar analysis and are calling for more clinical studies on microdosing’s effectiveness. They emphasize the need for safe products, well-informed consumers, appropriate manufacturing practices, and documented benefits and risks.

“We need to better translate clinical evidence for consumers and policymakers to understand the benefits and risks of microdosing and how policy changes drive interest in substance use,” said Leas.

Co-authors include: Nora Satybaldiyeva, Matthew R. Allen, John W. Ayers, of UC San Diego.

Funding/Support: The work is supported in part by grant T32IP4684 from the California Tobacco Related Disease Research Program, grant K01DA054303 from the US National Institute on Drug Abuse and Burroughs Welcome Fund.

About this psychopharmacology research news

Author: Miles Martin
Source: UCSD
Contact: Miles Martin – UCSD
Image: The image is credited to Neuroscience News

Original Research: Open access.
State Cannabis and Psychedelic Legislation and Microdosing Interest in the US” by Kevin Yang et al. JAMA Health Forum


Abstract

State Cannabis and Psychedelic Legislation and Microdosing Interest in the US

Importance  

Despite growing interest in psychedelics, there is a lack of routine population-based surveillance of psychedelic microdosing (taking “subperceptual” doses of psychedelics, approximately one-twentieth to one-fifth of a full dose, over prolonged periods). Analyzing Google search queries can provide insights into public interest and help address this gap.

Objective  

To analyze trends in public interest in microdosing in the US through Google search queries and assess their association with cannabis and psychedelic legislative reforms.

Design, Setting, and Participants  

In this cross-sectional study, a dynamic event-time difference-in-difference time series analysis was used to assess the impact of cannabis and psychedelic legislation on microdosing search rates from January 1, 2010, to December 31, 2023. Google search rates mentioning “microdosing,” “micro dosing,” “microdose,” or “micro dose” within the US and across US states were measured in aggregate.

Exposure  

Enactment of (1) local psychedelic decriminalization laws; (2) legalization of psychedelic-assisted therapy and statewide psychedelic decriminalization; (3) statewide medical cannabis use laws; (4) statewide recreational cannabis use laws; and (5) all cannabis and psychedelic use restricted.

Main Outcome and Measures  

Microdosing searches per 10 million Google queries were measured, examining annual and monthly changes in search rates across the US, including frequency and nature of related searches.

Results  

Searches for microdosing in the US remained stable until 2014, then increased annually thereafter, with a cumulative increase by a factor of 13.4 from 2015 to 2023 (7.9 per 10 million to 105.6 per 10 million searches, respectively). In 2023, there were 3.0 million microdosing searches in the US.

Analysis at the state level revealed that local psychedelic decriminalization laws were associated with an increase in search rates by 22.4 per 10 million (95% CI, 7.5-37.2), statewide psychedelic therapeutic legalization and decriminalization were associated with an increase in search rates by 28.9 per 10 million (95% CI, 16.5-41.2), statewide recreational cannabis laws were associated with an increase in search rates by 40.9 per 10 million (95% CI, 28.6-53.3), and statewide medical cannabis laws were associated with an increase in search rates by 11.5 per 10 million (95% CI, 6.0-16.9).

From August through December 2023, 27.0% of the variation in monthly microdosing search rates between states was explained by differences in cannabis and psychedelics legal status.

Conclusion and Relevance  

This cross-sectional study found that state-led legislative reforms on cannabis and psychedelics were associated with increased public interest in microdosing psychedelics.

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