Ryan G. Vandrey

9.8k total citations · 1 hit paper
153 papers, 6.3k citations indexed

About

Ryan G. Vandrey is a scholar working on Pharmacology, Toxicology and Experimental and Cognitive Psychology. According to data from OpenAlex, Ryan G. Vandrey has authored 153 papers receiving a total of 6.3k indexed citations (citations by other indexed papers that have themselves been cited), including 114 papers in Pharmacology, 32 papers in Toxicology and 31 papers in Experimental and Cognitive Psychology. Recurrent topics in Ryan G. Vandrey's work include Cannabis and Cannabinoid Research (112 papers), Forensic Toxicology and Drug Analysis (32 papers) and Sleep and related disorders (30 papers). Ryan G. Vandrey is often cited by papers focused on Cannabis and Cannabinoid Research (112 papers), Forensic Toxicology and Drug Analysis (32 papers) and Sleep and related disorders (30 papers). Ryan G. Vandrey collaborates with scholars based in United States, Australia and Canada. Ryan G. Vandrey's co-authors include Alan J. Budney, Marcel O. Bonn‐Miller, John R. Hughes, Brent A. Moore, Tory R. Spindle, George E. Bigelow, Edward J. Cone, John M. Mitchell, Ronald Flegel and Evan S. Herrmann and has published in prestigious journals such as JAMA, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Ryan G. Vandrey

145 papers receiving 6.1k citations

Hit Papers

Labeling Accuracy of Cannabidiol Extracts Sold Online 2017 2026 2020 2023 2017 100 200 300
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Labeling Accuracy of Cannabidiol Extracts Sold Online
    2017 358 citations Marcel O. Bonn‐Miller, Mallory Loflin et al. profile →

Peers

Ryan G. Vandrey
Nadia Solowij Australia
Eric C. Strain United States
Sandra D. Comer United States
Frances R. Levin United States
Mark A. Ware Canada
Carl L. Hart United States
Valerie H. Curran United Kingdom
Marta Torrens Spain
Bernard Le Foll Canada
Marcel O. Bonn‐Miller United States
Nadia Solowij Australia
Ryan G. Vandrey
Citations per year, relative to Ryan G. Vandrey Ryan G. Vandrey (= 1×) peers Nadia Solowij

Countries citing papers authored by Ryan G. Vandrey

Since Specialization
Citations

This map shows the geographic impact of Ryan G. Vandrey's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryan G. Vandrey with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryan G. Vandrey more than expected).

Fields of papers citing papers by Ryan G. Vandrey

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryan G. Vandrey. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryan G. Vandrey. The network helps show where Ryan G. Vandrey may publish in the future.

Co-authorship network of co-authors of Ryan G. Vandrey

This figure shows the co-authorship network connecting the top 25 collaborators of Ryan G. Vandrey. A scholar is included among the top collaborators of Ryan G. Vandrey based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ryan G. Vandrey. Ryan G. Vandrey is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Suraev, Anastasia, Iain S. McGregor, Danielle McCartney, et al.. (2025). Acute Effects of Oral Cannabinoids on Sleep and High‐Density EEG in Insomnia: A Pilot Randomised Controlled Trial. Journal of Sleep Research. 35(1). e70124–e70124. 1 indexed citations
3.
Zamarripa, C. Austin, Tory R. Spindle, Edward J. Cone, et al.. (2025). A within-subject cross-over trial comparing the acute effects of oral delta-8-tetrahydrocannabinol and delta-9-tetrahydrocannabinol in healthy adults. Drug and Alcohol Dependence. 272. 112676–112676.
4.
Ellis, Jennifer D., Siny Tsang, Courtney Nordeck, et al.. (2025). Craving for opioid and cannabis use among adults with chronic pain: Insights from a 30-day ecological momentary assessment study. Drug and Alcohol Dependence. 276. 112843–112843.
5.
Spindle, Tory R., C. Austin Zamarripa, Ethan B. Russo, et al.. (2024). Vaporized D-limonene selectively mitigates the acute anxiogenic effects of Δ9-tetrahydrocannabinol in healthy adults who intermittently use cannabis. Drug and Alcohol Dependence. 257. 111267–111267. 15 indexed citations
6.
Zamarripa, C. Austin, Dennis J. Sholler, Justin C. Strickland, et al.. (2023). A cross-sectional survey on cannabis: Characterizing motives, opinions, and subjective experiences associated with the use of various oral cannabis products. Drug and Alcohol Dependence. 245. 109826–109826. 5 indexed citations
7.
Rosenberg, Paul B., Halima Amjad, Ryan G. Vandrey, et al.. (2023). Pilot trial of Dronabinol adjunctive treatment of agitation in Alzheimer’s disease (THC‐AD). Alzheimer s & Dementia. 19(S4). 1 indexed citations
8.
Rezvan, Panteha Hayati, Olivia Cobb, Jeff Chen, et al.. (2022). The Safety and Effectiveness of Commercially Available Cannabidiol Products for Health and Well-Being: A Randomized, Multi-Arm, Open-Label Waitlist-Controlled Trial. SHILAP Revista de lepidopterología. 1(1). 3 indexed citations
9.
Spindle, Tory R., Hiroto Kuwabara, Ayon Nandi, et al.. (2021). Brain imaging of cannabinoid type I (CB1) receptors in women with cannabis use disorder and male and female healthy controls. Addiction Biology. 26(6). e13061–e13061. 28 indexed citations
10.
11.
Dermody, Sarah S., Katelyn Tessier, Ellen Meier, et al.. (2020). An Evaluation of Potential Unintended Consequences of a Nicotine Product Standard: A Focus on Drinking History and Outcomes. Nicotine & Tobacco Research. 23(7). 1168–1175. 6 indexed citations
12.
Schlienz, Nicolas J., Tory R. Spindle, Edward J. Cone, et al.. (2020). Pharmacodynamic dose effects of oral cannabis ingestion in healthy adults who infrequently use cannabis. Drug and Alcohol Dependence. 211. 107969–107969. 63 indexed citations
13.
Bonn‐Miller, Marcel O., A. Simonian, Mallory Loflin, et al.. (2020). The Long-Term, Prospective, Therapeutic Impact of Cannabis on Post-Traumatic Stress Disorder. Cannabis and Cannabinoid Research. 7(2). 214–223. 21 indexed citations
14.
Bonn‐Miller, Marcel O., Charles V. Pollack, David Casarett, et al.. (2019). Priority Considerations for Medicinal Cannabis-Related Research. Cannabis and Cannabinoid Research. 4(3). 139–157. 23 indexed citations
15.
Lee, Dustin C., Nicolas J. Schlienz, Erica N. Peters, et al.. (2018). Systematic review of outcome domains and measures used in psychosocial and pharmacological treatment trials for cannabis use disorder. Drug and Alcohol Dependence. 194. 500–517. 32 indexed citations
16.
Babson, Kimberly A., et al.. (2015). Mobile App-Delivered Cognitive Behavioral Therapy for Insomnia: Feasibility and Initial Efficacy Among Veterans With Cannabis Use Disorders. SHILAP Revista de lepidopterología. 4(3). e87–e87. 53 indexed citations
17.
Herrmann, Evan S., Edward J. Cone, John M. Mitchell, et al.. (2015). Non-smoker exposure to secondhand cannabis smoke II: Effect of room ventilation on the physiological, subjective, and behavioral/cognitive effects. Drug and Alcohol Dependence. 151. 194–202. 54 indexed citations
18.
Vandrey, Ryan G., et al.. (2013). Novel Drugs of Abuse: A Snapshot of an Evolving Marketplace. Adolescent Psychiatry. 3(2). 123–134. 21 indexed citations
19.
Vandrey, Ryan G., Annie Umbricht, & Eric C. Strain. (2010). Increased Blood Pressure After Abrupt Cessation of Daily Cannabis Use. Journal of Addiction Medicine. 5(1). 16–20. 32 indexed citations
20.
Vandrey, Ryan G. & Margaret Haney. (2009). Pharmacotherapy for Cannabis Dependence. CNS Drugs. 23(7). 543–553. 81 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Nadia Solowij Breakdown of academic impact, for papers by Eric C. Strain Breakdown of academic impact, for papers by Sandra D. Comer Breakdown of academic impact, for papers by Frances R. Levin Breakdown of academic impact, for papers by Mark A. Ware Breakdown of academic impact, for papers by Carl L. Hart Breakdown of academic impact, for papers by Valerie H. Curran Breakdown of academic impact, for papers by Marta Torrens Breakdown of academic impact, for papers by Bernard Le Foll Breakdown of academic impact, for papers by Marcel O. Bonn‐Miller
Rankless by CCL
2026