Simple techniques to detect and identify phentermine adulteration.
Phentermine capsules labelled Ionamin were suspected of being counterfeit. Examination of the contents revealed no phentermine, but caffeine and phenylpropanolamine. The usual microcrystalline and spectrodensitometry was used to confirm results of spectrophotometric identity tests.
D002855:Chromatography, Thin Layer; D003460:Crystallization; D004340:Drug Contamination; D010645:Phentermine / Q000302:isolation & purification; D013056:Spectrophotometry, Ultraviolet
D010645:Phentermine