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South African cannabis-based products that were submitted to a private laboratory for the determination of heavy metals residues were analyzed. The presence of each heavy metal residue was determined in order to establish which residues are most prevalent in samples. Two specifications were considered for both oral as well as inhalation limits: United States Pharmacopeia (USP) <232>/<233> and the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) Q3D. To date, no data of this kind exist in South Africa specifically relating to cannabis-based medicinal, recreational, or complementary products. A total of 310 samples were analyzed in duplicate and are reported in an anonymized format. The submitted samples were divided into different category classifications and grouped according to relevance for oral or inhalation specification. (Full article...)
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