# High concentrations of illicit stimulants and cutting agents cause false positives on fentanyl test strips

> Research article (Harm Reduction Journal, 2021) · cited 88× · AI/ML

**Wikidata**: [openalex:W3134216738](https://www.wikidata.org/wiki/openalex:W3134216738)  
**Source**: https://4ort.xyz/entity/high-concentrations-of-illicit-stimulants-and-cutting-agents-cause-false-positives-on-fentanyl-test-strips