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Methoxphenidine (MXP)
by Erowid
1989 Searle Company patents Methoxphenidine ("2-methoxy-phenidine") as a possible treatment for neural injury. 1   [More Info]
Jun 2013 First documented recreational use of methoxphenidine (MXP). 2, 3   [Details] [More Info]
Nov 2013 First general commercial availability of methoxphenidine (MXP) to the public through research chemical vendors. 4, 5   [More Info]
2014 The STRIDA project in Sweden tracks 3 patients admitted to emergency departments after use of MXP (in some cases in combination with other drugs). 6   [More Info]
Feb 2014 Methoxphenidine first detected in sample submitted to Energy Control. 7   [Details]
Jun 2014 Cayman Chemical first offers Methoxphenidine as an analytical lab standard for use primarily in forensic toxicology / drug detection.   
Mid 2014 First documented fatalities associated with methoxphenidine (MXP). 8   [Details] [More Info]
Apr 2015 Methoxphenidine first detected in sample submitted to    [More Info]

  1.   Gray NM, Cheng BK. "1,2-diarylethylamines for treatment of neurotoxic injury". European Patent Office # EP0346791
  2.   Renton. "Where I've Wanted to Be All Along: An Experience with Methoxphenidine (ID 101000)". Mar 31, 2014.
  3.   Jesusgreen. "(Methoxphenidine / 82mg) - Experienced - Worthwhile addition" Bluelight. Nov 26, 2013.
  4.   Erowid Crew. Internal notes. 2013.
  5.   Morris H, Wallach J. “From PCP to MXE: a comprehensive review of the non-medical use of dissociative drugs”. Drug Test Anal. Jul-Aug;6(7-8):614-632.
  6.   Helander A, Beck O, Bäckberg M. "Intoxications by the dissociative new psychoactive substances diphenidine and methoxphenidine". Clin Toxicol (Phila). 2015 Jun 08;53(5):446-53.
  7.   Energy Control Analysis Summary. Private communication with Erowid and published analyses on Oct 2015.
  8.   Elliott SP, Brandt SD, Wallach J, Morris H, Kavanagh PV. "First Reported Fatalities Associated with the 'Research Chemical' 2-Methoxydiphenidine". J Anal Toxicol. 2015 May;39(4):287-293.