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Fentanyl test strips have been found to significantly alter drug use behavior and foster safer drug use practices with continued testing

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Regulatory note: The FDA added injectable GHK-Cu to a high-risk compounded substance list in September 2023

Yeo TW, Weinberg JB, Lampah DA, Kenangalem E, Bush P, Chen Y, Price RN, Young S, Zhang HY, Millington D, Granger DL, Anstey NM