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Legal status
Legal status
PubChem CID
Chemical and physical data
Molar mass234.299 g·mol−1
3D model (JSmol)

Methoxypiperamide (also known as MeOP and MEXP) is a psychoactive drug of the piperazine class that has been sold online as a designer drug.[1][2] It is the 4-methoxy-α-keto analog of methylbenzylpiperazine.

Very little data exists about the pharmacology and toxicity of methoxypiperamide; however, the US state of Vermont classifies it as a hallucinogen.

Legal status[edit]

Methoxypiperamide is a controlled substance in Vermont as of January 2016,[3] and also in Hungary.[4]

See also[edit]


  1. ^ Power JD, Scott KR, Gardner EA, Curran McAteer BM, O'Brien JE, Brehon M, Talbot B, Kavanagh PV (January 2014). "The syntheses, characterization and in vitro metabolism of nitracaine, methoxypiperamide and mephtetramine". Drug Testing and Analysis. 6 (7–8): 668–75. doi:10.1002/dta.1616. PMID 24574100.
  2. ^ Markus R. Meyer; Anna Holderbaum; Pierce Kavanagh; Hans H. Maurer (October 2015). "Low resolution and high resolution MS for studies on the metabolism and toxicological detection of the new psychoactive substance methoxypiperamide (MeOP)". Journal of Mass Spectrometry. 50 (10): 1163–1174. doi:10.1002/jms.3635. PMID 26456786.
  3. ^ "Regulated Drugs Rule" (PDF). Vermont Department of Health. Retrieved 14 October 2015.
  4. ^ A Magyarországon megjelent, a Kábítószer és Kábítószer-függőség Európai Megfigyelő Központjának Korai Jelzőrendszerébe (EMCDDA EWS) 2005 óta bejelentett ellenőrzött anyagok büntetőjogi vonatkozású besorolása