Peer-Reviewed Publications


  • Palamar JJ, Fitzgerald ND, Carr T, Rutherford C, Keyes KM, Cottler LB. National and regional trends in seizures of shrooms (psilocybin) in the United States, 2017–2022. Drug and Alcohol Dependence. 2024. doi: 10.1016/j.drugalcdep.2024.111086


  • Palamar JJ, Goldberger BA. Surveillance of Xylazine Use and Poisonings Is Needed-Without Blind Spots. Annals of Internal Medicine. 2023. doi: 10.7326/M23-2299
  • Palamar JJ, Wilkinson ST, Carr T, Rutherford C, Cottler LB. Trends in Illicit Ketamine Seizures in the US From 2017 to 2022. JAMA Psychiatry. doi: 10.1001/jamapsychiatry.2023.1423
  • Han BH, Jewell JS, Ding BK, Wu NC, Cottler LB, Palamar JJ. Trends in characteristics of prescription opioid-related poisonings among older adults in the United States, 2015-2021. 2023. doi: 10.1097/ADM.0000000000001193
  • Won NY, Palamar JJ, Mike SA, Fitzgerald ND, Cottler LB. A qualitative analysis of emergency medical services personnel experiences and perception responding to drug overdoses in the US during the COVID-19 pandemic. Journal of Health Research. 2023. doi: 10.56808/2586-940X.1045


  • Palamar JJ, Ciccarone D, Rutherford C, Keyes KM, Carr T, Cottler LB. Trends in seizures of powders and pills containing illicit fentanyl in the United States, 2018 through 2021. Drug and Alcohol Dependence 2022. doi: 10.1016/j.drugalcdep.2022.109398
  • Palamar JJ, Cottler LB, Goldberger BA, Severtson SG, Grundy DJ, Iwanicki JL, Ciccarone D. Trends in characteristics of fentanyl-related poisonings in the United States, 2015–2021. Drug and Alcohol Abuse 2022.doi: 10.1080/00952990.2022.2081923
  • Hoeflich HC, Wang A, Otufowora A, Cottler LB, Striley CW. Virtual recruitment and participant engagement for substance use research during a pandemic. Current Opinion in Psychiatry 2022. doi: 10.1097/YCO.0000000000000794


  • Fitzgerald ND, Barenholtz E. Commentary on Lin et al.; The importance of valid reference standards in training supervised machine learning classifiers to detect alcohol misuse. Addiction 2022. doi: 10.1111/add.15784
  • Barenholtz E, Krotulski AJ, Morris P, Fitzgerald ND, Le A, Papsun DM, Logan BK, Hahn WE, Goldberger BA, Cottler LB, Palamar JJ. Online surveillance of novel psychoactive substances (NPS): Monitoring Reddit discussions as a predictor of increased NPS-related exposures. International Journal of Drug Policy 2021. doi: 10.1016/j.drugpo.2021.103393
  • Palamar JJ, Le A, Carr TH, Cottler LB. Shifts in drug seizures in the United States during the COVID-19 pandemic. Drug and Alcohol Dependence 2021. doi: 10.1016/j.drugalcdep.2021.108580
  • Palamar JJ. Moving away from piecemeal trends: The need for multiple data sources in drug use trend analyses. Drug and Alcohol Review 2021. doi:
  • Palamar JJ, Rutherford C, Keyes KM. Trends in ketamine use, exposures, and seizures in the United States up to 2019. American Journal of Public Health 2021. doi: 10.2105/AJPH.2021.306486
  • Striley CW, Hoeflich CC. Converging public health crises: Substance use during the coronavirus disease 2019 pandemic. Current Opinion in Psychiatry 2021. doi:10.1097/YCO.0000000000000722
  • Palamar JJ, Fitzgerald ND, Keyes KM, Cottler LB. Drug checking at dance festivals: a review with recommendations to increase generalizability of findings. Experimental and Clinical Psychopharmacology 2021. doi: 10.1037/pha0000452
  • Palamar JJ, Fitzgerald ND, Cottler LB. Shifting awareness among electronic dance music party attendees that drugs may contain fentanyl or other adulterants. International Journal of Drug Policy. 2021. doi: 10.1016/j.drugpo.2021.103353
  • Fitzgerald ND, Striley CW, Palamar JJ, Copeland J, Kurtz S, Cottler LB. Test-retest reliability and cross-cultural applicability of DSM-5 adopted diagnostic criteria for ketamine use disorders. Drug and Alcohol Dependence. 2021. doi: 10.1016/j.drugalcdep.2021.109056
  • Cottler LB, Lasopa SO, Striley CW, Cicero TJ, Fitzgerald ND, Abdallah AB. Prescription stimulant brand name recoginition among a national sample of 10- to 18-year old youth. International Journal of Methods in Psychiatric Research. 2021. doi: 10.1002/mpr.1884
  • Yu W, Cottler LB, Li J. New psychoactive substances in Taiwan: the current situation and initiative for rational scheduling. Food and Drug Analysis. 2021. doi: 10.38212/2224-6614.3225


  • Cottler LB, Goldberger BA, Nixon SJ, Striley CW, Barenholtz E, Fitzgerald ND, Taylor SM, Palamar JJ. Introducing NIDA’s new National Drug Early Warning System. Drug and Alcohol Dependence 2020; 217:108286. doi: 10.1016/j.drugalcdep.2020.108286

Last modified: 12/11/2024

The National Drug Early Warning System (NDEWS) is funded by the National Institute on Drug Abuse (U01DA051126) to the University of Florida (PI: Cottler; Co-Is: Goldberger, Nixon, Striley), New York University (Co-I: Palamar), and Florida Atlantic University (Co-I: Barenholtz).