ArticleExperimental and clinical psychopharmacology2026
Probability of fentanyl adulteration in cocaine selectively decreases cocaine demand.
Article in Experimental and clinical psychopharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Fentanyl-related, cocaine-overdose deaths have drastically increased, yet research on how people who use cocaine perceive fentanyl adulteration is limited. This study developed the novel Adulterated Cocaine Purchasing Task, a modification of the original Cocaine Purchasing Task, to quantify how people respond to fentanyl adulteration in cocaine. In the Adulterated Cocaine Purchasing Task, participants indicated how much cocaine they would purchase when cocaine had no (0%) versus some (10%) probability of fentanyl adulteration. Study aims were to (a) determine how possible fentanyl adulteration affects cocaine demand and (b) determine which individual characteristics predict continued demand for cocaine despite fentanyl adulteration. This Amazon Mechanical Turk study included self-reported cocaine purchasers (
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