Cited by 27Neurotransmitter Receptor Influence on BehaviorSubstance Abuse Treatment and OutcomesForensic Toxicology and Drug Analysis

Cardiovascular and subjective effects of repeated smoked cocaine administration in experienced cocaine users

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Reed, Stephanie Collins, Haney, Margaret, Evans, Suzette M., Vadhan, Nehal P., Rubin, Eric, Foltin, Richard W.·2009·Drug and Alcohol Dependence

Abstract

Studies using rodents have shown that behavioral responses to a stimulant are enhanced when the stimulant is given within the same context as previous stimulant administrations; this increase in effect related to context is often referred to as sensitization. We examined the role of environmental stimuli in modulating the subjective and cardiovascular effects of cocaine in humans (1) within a daily "binge" and (2) after cocaine abstinence. Ten non-treatment seeking users of smoked cocaine were admitted to the hospital for 17 consecutive days. Participants smoked cocaine (25mg/dose) under two counterbalanced conditions: paired stimuli (same stimuli presented each session) and unpaired stimuli (varied stimuli presented each session). Under each stimulus condition, participants had cocaine test sessions for three consecutive days, no sessions for the next 3 days, then another cocaine test session on the following day, for a total of eight test days. Stimulus condition had no effect on cardiovascular or subjective effects so data were analyzed as a function of repeated cocaine administration over 2 weeks. Maximal ratings on "good drug" and "drug rating" subjective effects clusters decreased over days of repeated cocaine exposure. In contrast, baseline and peak heart rate and systolic pressure increased over days of repeated cocaine administration. Thus, repeated administration of smoked cocaine to experienced cocaine users resulted in increases in baseline blood pressure and heart rate and modest decreases in positive subjective effects. These data indicate modest tolerance rather than sensitization to the positive subjective effects of cocaine with repeated exposure.

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Crossref · 10.1016/j.drugalcdep.2009.02.004

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Authors
Reed, S. C., Haney, M., Evans, S. M., Vadhan, N. P., Rubin, E., & Foltin, R. W.
Affiliations
New York State Psychiatric Institute (US)
Venue
Drug and Alcohol Dependence
Publisher
Elsevier BV
Published
2009-06
Volume
102
Issue
1-3
Pages
102-107
ISSN
0376-8716 (ISSN-L)
OpenAlex
W2095204528
Cited by
27
References
31
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2023: 1 · 2022: 1 · 2020: 2 · 2018: 2 · 2016: 3 · 2015: 2 · 2014: 2 · 2013: 3 · 2012: 3
FWCI
1.11
Type
journal article
Language
en
Open access
Locations
  • Drug and Alcohol Dependence (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Drug Abuse (R01DA008105, DA-08105)
  • National Center for Research Resources (UL1RR024156)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Toxicology › Forensic Toxicology and Drug Analysis
Keywords
cocaine, smoked cocaine, cocaine tolerance, cocaine sensitization, subjective effects, cardiovascular effects, heart rate, blood pressure, repeated dosing, cocaine abstinence
MeSH terms
Acoustic Stimulation, Administration, Inhalation, Adult, Blood Pressure, Drug Tolerance, Female, Heart Rate, Hemodynamics, Humans, Male, Middle Aged, Photic Stimulation, Psychomotor Performance, Surveys and Questionnaires, Smell, Smoking, Cocaine-Related Disorders

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