Determination of pholcodine alone or in combination with ephedrine in human plasma using fluorescence spectroscopy | Scientific Reports
Bottle of ephedrine hydrochloride tablets | Science Museum Group Collection
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Ephedrine – DrugWise
Analysis of dried blood spots is a feasible alternative for detecting ephedrine in doping control - Solheim - 2022 - Drug Testing and Analysis - Wiley Online Library
Pharmaceutical doses of the banned stimulant oxilofrine found in dietary supplements sold in the USA - Cohen - 2017 - Drug Testing and Analysis - Wiley Online Library