In mid-1967, tablets containing 20 mg (later 10 mg) of DOM were widely distributed in the Haight-Ashbury District of San Francisco under the name of STP.
The misrepresentation as LSD has been described by the periodical "High Times," helping some users to identify what they are actually taking.
In June 2013 a PMMA-related death occurred in the Dutch city of 's-Hertogenbosch.
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Two months later, In August 2013, another possibly PMMA-related death occurred in the nearby town of Sliedrecht.