Consolidated Index of Controlled Substances
M
M† 
CA: CDSA Schedule III Section 17 Mescaline
UK: MDA Part I Class A Section 1(a) Mescaline and Section 1(f) Mescaline
UN: Psychotropics Schedule I Mescaline
US: CSA Schedule I Section d Subsection 24 Mescaline
PubChem: 4076; ChemSpider: 3934; Drugs Forum: Mescaline; Erowid: Mescaline; PiHKAL • info: M; Wikipedia: Mescaline
Madol
UK: MDA Part III Class C Section 1(b) Desoxymethyltestosterone
US: CSA Schedule III Section f Subsection 1 Item 17 Desoxymethyltestosterone
PubChem: 18651; ChemSpider: 17611; Erowid: Steroids; Wikipedia: Desoxymethyltestosterone
Magic mushrooms§ 
UK: MDA Part I Class A Section 1(a) Fungus
Drugs Forum: Magic Mushrooms; Wikipedia: Fungus
MAM-2201
CA: CDSA Schedule II Section 2 Subsection 2 1-(5-Fluoropentyl)-3-(4-methyl-1-naphthoyl)indole
PubChem: 66570720; ChemSpider: 28289977; Bluelight: MAM-2201; Drugs Forum: MAM-2201; Wikipedia: MAM-2201
Mappine
UK: MDA Part I Class A Section 1(a) Bufotenine
US: CSA Schedule I Section d Subsection 17 Bufotenine
PubChem: 10257; ChemSpider: 9839; Bluelight: 5-HO-DMT; Drugs Forum: Bufotenin; Erowid: Bufotenin; TiHKAL • info: 5-HO-DMT; Wikipedia: Bufotenin
Marihuana
CA: CDSA Schedule II Section 1 Subsection 2 Cannabis, Schedule VII Section 2 Cannabis and Schedule VIII Section 2 Cannabis
UK: MDA Part II Class B Section 1(a) Cannabis
UN: Narcotics Part 1 Section 1 Cannabis and Section 3 Cannabis
US: CSA Schedule I Section d Subsection 23 Marihuana
PubChem: 423122; Bluelight: Cannabis; Drugs Forum: Cannabis; Erowid: Cannabis; Wikipedia: Cannabis
Marihuana extract
UN: Narcotics Part 1 Section 1 Extracts and tinctures of cannabis
US: [proposed] CSA Schedule I Section d Subsection 36 Marihuana extract
PubChem: 807
Mazindol
CA: CDSA Schedule IV Section 15 Mazindol
UK: MDA Part III Class C Section 1(a) Mazindol
UN: Psychotropics Schedule IV Mazindol
US: CSA Schedule IV Section f Subsection 5 Mazindol
PubChem: 4020; ChemSpider: 3880; Wikipedia: Mazindol
MDA
CA: CDSA Schedule I Section 19 Subsection 4 3,4-Methylenedioxyamphetamine (MDA)
CA: [revoked] CDSA Schedule III Section 1 Subsection 5 3,4-Methylenedioxyamphetamine (MDA)
UK: MDA Part I Class A Section 1(c) 3,4-Methylenedioxyamphetamine
UN: Psychotropics Schedule I Tenamfetamine (MDA)
US: CSA Schedule I Section d Subsection 10 3,4-Methylenedioxyamphetamine
PubChem: 1614; ChemSpider: 1555; Bluelight: MDA; Drugs Forum: MDA; Erowid: MDA; PiHKAL • info: MDA; Wikipedia: 3,4-Methylenedioxyamphetamine
MDAL† 
UK: MDA Part I Class A Section 1(ba) Allyl(α-methyl-3,4-methylenedioxyphenethyl)amine
ChemSpider: 21106331; PiHKAL • info: MDAL; Wikipedia: Methylenedioxyallylamphetamine
MDBZ† 
UK: MDA Part I Class A Section 1(ba) Benzyl(α-methyl-3,4-methylenedioxyphenethyl)amine
PubChem: 20507314; ChemSpider: 15110233; PiHKAL • info: MDBZ; Wikipedia: Methylenedioxybenzylamphetamine
MDCPM† 
ChemSpider: 21106332; PiHKAL • info: MDCPM; Wikipedia: Methylenedioxycyclopropylmethylamphetamine
MDDM† 
CA: CDSA Schedule I Section 19 Subsection 11 N,N-Dimethyl-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 12 N,N-Dimethyl-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(ba) Dimethyl(α-methyl-3,4-methylenedioxyphenethyl)amine
PubChem: 551630; ChemSpider: 479880; Bluelight: MDDMA; PiHKAL • info: MDDM; Wikipedia: MDDM
MDE
CA: CDSA Schedule I Section 19 Subsection 12 N-Ethyl-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 13 N-Ethyl-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) N-Ethyl-3,4-methylenedioxyamphetamine
UN: Psychotropics Schedule I MDE (N-Ethyl MDA)
US: CSA Schedule I Section d Subsection 12 3,4-Methylenedioxy-N-ethylamphetamine
PubChem: 105039; ChemSpider: 94775; Bluelight: MDE; Drugs Forum: MDEA; Erowid: MDE; PiHKAL • info: MDE; Wikipedia: Methylenedioxyethylamphetamine
MDEA† 
CA: CDSA Schedule I Section 19 Subsection 12 N-Ethyl-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 13 N-Ethyl-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) N-Ethyl-3,4-methylenedioxyamphetamine
UN: Psychotropics Schedule I MDE (N-Ethyl MDA)
US: CSA Schedule I Section d Subsection 12 3,4-Methylenedioxy-N-ethylamphetamine
PubChem: 105039; ChemSpider: 94775; Bluelight: MDE; Drugs Forum: MDEA; Erowid: MDE; PiHKAL • info: MDE; Wikipedia: Methylenedioxyethylamphetamine
MDHOET† 
CA: CDSA Schedule I Section 19 Subsection 19 N-(2-Hydroxyethyl)-α-methylbenzeneethanamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 20 N-(2-Hydroxyethyl)-α-methylbenzeneethanamine
PubChem: 45446; ChemSpider: 41347; PiHKAL • info: MDHOET
MDMA
CA: CDSA Schedule I Section 19 Subsection 8 N-Methyl-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 9 N-Methyl-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) N-Methyl-3,4-methylenedioxyamphetamine
UN: Psychotropics Schedule I MDMA
US: CSA Schedule I Section d Subsection 11 3,4-Methylenedioxymethamphetamine
PubChem: 1615; ChemSpider: 1556; Bluelight: MDMA; Drugs Forum: MDMA; Erowid: MDMA; PiHKAL • info: MDMA; Wikipedia: Methylenedioxymethamphetamine
MDMEO† 
ChemSpider: 21106333; PiHKAL • info: MDMEO; Wikipedia: MDMEO
MDMEOET† 
ChemSpider: 21106334; PiHKAL • info: MDMEOET; Wikipedia: Methylenedioxymethoxyethylamphetamine
MDMP† 
UK: MDA Part I Class A Section 1(ba) α,α-Dimethyl-3,4-methylenedioxyphenethyl(methyl)amine
PubChem: 44366836; ChemSpider: 21106335; PiHKAL • info: MDMP; Wikipedia: MDMP
MDOH† 
CA: CDSA Schedule I Section 19 Subsection 20 N-Hydroxy-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 21 N-Hydroxy-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(a) N-Hydroxy-tenamphetamine and Section 1(f) N-Hydroxytenamphetamine
UN: Psychotropics Schedule I N-Hydroxy MDA
US: CSA Schedule I Section d Subsection 13 N-Hydroxy-3,4-methylenedioxyamphetamine
PubChem: 98528; ChemSpider: 88979; PiHKAL • info: MDOH; Wikipedia: MDOH
MDPH† 
UK: MDA Part I Class A Section 1(ba) α,α-Dimethyl-3,4-methylenedioxyphenethylamine
PubChem: 13020598; ChemSpider: 15204207; PiHKAL • info: MDPH; Wikipedia: Methylenedioxyphentermine
MDPL† 
UK: MDA Part I Class A Section 1(ba) α-Methyl-3,4-methylenedioxyphenethyl(prop-2-ynyl)amine
ChemSpider: 21106336; PiHKAL • info: MDPL; Wikipedia: Methylenedioxypropargylamphetamine
MDPR† 
CA: CDSA Schedule I Section 19 Subsection 18 N-Propyl-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 19 N-Propyl-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) N-Propyl-3,4-methylenedioxyamphetamine
PubChem: 559375; ChemSpider: 486273; Erowid: MDPR; PiHKAL • info: MDPR; Wikipedia: MDPR
MDPV
CA: CDSA Schedule I Section 17.1 Methylenedioxypyrovalerone
EU: Substances Substances 3,4-Methylenedioxypyrovalerone
UK: MDA Part II Class B Section 1(aa) MDPV
US: CSA Schedule I Section d Subsection 37 3,4-Methylenedioxypyrovalerone
PubChem: 20111961; ChemSpider: 16788110; Bluelight: MDPV; Drugs Forum: MDPV; Erowid: MDPV; Wikipedia: Methylenedioxypyrovalerone
Mebolazine
CA: CDSA Schedule IV Section 23 Subsection 19 Mebolazine
UK: MDA Part III Class C Section 1(b) Mebolazine
PubChem: 9571069; ChemSpider: 16736946; Wikipedia: Mebolazine
Mebutamate
US: CSA Schedule IV Section c Subsection 32 Mebutamate
PubChem: 6151; ChemSpider: 5919; Wikipedia: Mebutamate
Mecloqualone
CA: CDSA Schedule III Section 4 Mecloqualone
UK: MDA Part II Class B Section 1(a) Mecloqualone
UN: Psychotropics Schedule II Mecloqualone
US: CSA Schedule I Section e Subsection 2 Mecloqualone
PubChem: 9567; ChemSpider: 9192; Wikipedia: Mecloqualone
Medazepam
CA: CDSA Schedule IV Section 18 Subsection 22 Medazepam
UK: MDA Part III Class C Section 1(a) Medazepam
UN: Psychotropics Schedule IV Medazepam
US: CSA Schedule IV Section c Subsection 33 Medazepam
PubChem: 4041; ChemSpider: 3901; Wikipedia: Medazepam
Mefenorex
CA: CDSA Schedule IV Section 22 Mefenorex
UK: MDA Part III Class C Section 1(a) Mefenorex
UN: Psychotropics Schedule IV Mefenorex
US: CSA Schedule IV Section f Subsection 6 Mefenorex
PubChem: 21777; ChemSpider: 20467; Wikipedia: Mefenorex
MEK
CA: CDSA Schedule VI Part 2 Subsection 4 Methyl ethyl ketone
EU: Drug precursors Annex I Category 3 Methylethylketone
UK: MDA Drug precursors Annex I Category 3 Methyl ethyl ketone
UN: Precursors Table II Methyl ethyl ketone
US: CSA Listed Chemicals Section b Subsection 6 2-Butanone
PubChem: 6569; ChemSpider: 6321; Wikipedia: Butanone
MEM† 
CA: CDSA Schedule I Section 19 Subsection 9 4-Ethoxy-2,5-dimethoxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 10 4-Ethoxy-2,5-dimethoxyamphetamine
UK: MDA Part I Class A Section 1(c) 4-Ethoxy-2,5-dimethoxyamphetamine
PubChem: 542053; ChemSpider: 472023; PiHKAL • info: MEM; Wikipedia: MEM (psychedelic)
Meperidine
CA: CDSA Schedule I Section 3 Subsection 17 Pethidine
UK: MDA Part I Class A Section 1(a) Pethidine
UN: Narcotics Part 1 Section 1 Pethidine
US: CSA Schedule II Section c Subsection 18 Pethidine
PubChem: 4058; ChemSpider: 3918; Erowid: Meperidine; Wikipedia: Pethidine
Mephedrone
EU: Substances Substances 4-Methylmethcathinone
UK: MDA Part II Class B Section 1(aa) 4-Methylmethcathinone; Mephedrone
US: CSA Schedule I Section d Subsection 36 4-Methylmethcathinone
PubChem: 45266826; ChemSpider: 21485694; Bluelight: Mephedrone; Drugs Forum: Mephedrone; Erowid: 4-Methylmethcathinone / Mephedrone; Wikipedia: Mephedrone
Mephentermine
UK: MDA Part III Class C Section 1(a) Mephentermine
PubChem: 3677; ChemSpider: 3549; Wikipedia: Mephentermine
Mephobarbital
CA: CDSA Schedule IV Section 1 Subsection 16 Mephobarbital
US: CSA Schedule IV Section c Subsection 36 Methylphenobarbital
PubChem: 8271; ChemSpider: 7972; Bluelight: Methylphenobarbital; Erowid: Barbiturates; Wikipedia: Methylphenobarbital
Mepitiostane
UK: MDA Part III Class C Section 1(b) Mepitiostane
PubChem: 30605; ChemSpider: 8084854; Wikipedia: Mepitiostane
MePPP
US: CSA Schedule I Section h Subsection 12 4-Methyl-alpha-pyrrolidinopropiophenone
PubChem: 6430745; ChemSpider: 4936084; Wikipedia: 4′-Methyl-α-pyrrolidinopropiophenone
Meprobamate
CA: CDSA Schedule IV Section 16 Meprobamate
UK: MDA Part III Class C Section 1(a) Meprobamate
UN: Psychotropics Schedule IV Meprobamate
US: CSA Schedule IV Section c Subsection 34 Meprobamate
PubChem: 4064; ChemSpider: 3924; Wikipedia: Meprobamate
Meprodine‡ 
CA: CDSA Schedule I Section 3 Subsection 2 Alphameprodine
UK: MDA Part I Class A Section 1(a) Alphameprodine
UN: Narcotics Part 1 Section 1 Alphameprodine
US: CSA Schedule I Section b Subsection 5 Alphameprodine
PubChem: 61119; ChemSpider: 55067; Wikipedia: Meprodine
Mesabolone
CA: CDSA Schedule IV Section 23 Subsection 20 Mesabolone
UK: MDA Part III Class C Section 1(b) Mesabolone
PubChem: 252294 1551217; ChemSpider: 221051; Wikipedia: Mesabolone
Mescaline
CA: CDSA Schedule III Section 17 Mescaline
UK: MDA Part I Class A Section 1(a) Mescaline and Section 1(f) Mescaline
UN: Psychotropics Schedule I Mescaline
US: CSA Schedule I Section d Subsection 24 Mescaline
PubChem: 4076; ChemSpider: 3934; Drugs Forum: Mescaline; Erowid: Mescaline; PiHKAL • info: M; Wikipedia: Mescaline
Mesocarb
CA: CDSA Schedule III Section 30 Mesocarb
UK: MDA Part III Class C Section 1(a) Mesocarb
UN: Psychotropics Schedule IV Mesocarb
PubChem: 71932; ChemSpider: 64942; Wikipedia: Mesocarb
Mestanolone
UK: MDA Part III Class C Section 1(b) Mestanolone
US: CSA Schedule III Section f Subsection 1 Item 28 Mestanolone
PubChem: 10633; ChemSpider: 10187; Erowid: Steroids; Wikipedia: Mestanolone
Mesterolone
CA: CDSA Schedule IV Section 23 Subsection 21 Mesterolone
UK: MDA Part III Class C Section 1(b) Mesterolone
US: CSA Schedule III Section f Subsection 1 Item 29 Mesterolone
PubChem: 15020; ChemSpider: 14296; Erowid: Steroids; Wikipedia: Mesterolone
Metamfetamine
UN: Psychotropics Schedule II Metamfetamine (Methamphetamine)
PubChem: 10836; ChemSpider: 10379; Drugs Forum: Methamphetamine; Wikipedia: Methamphetamine
Metamfetamine racemate
CA: CDSA Schedule I Section 18 Methamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 23 Methamphetamine
UK: MDA Part I Class A Section 1(a) Methylamphetamine
US: CSA Schedule II Section d Subsection 2 Methamphetamine
PubChem: 1206; ChemSpider: 1169; Bluelight: Methamphetamine; Drugs Forum: Methamphetamine; Erowid: Meth; Wikipedia: Methamphetamine
Metandienone
CA: CDSA Schedule IV Section 23 Subsection 22 Metandienone
UK: MDA Part III Class C Section 1(b) Methandienone
US: CSA Schedule III Section f Subsection 1 Item 30 Methandienone
PubChem: 6300; ChemSpider: 6061; Erowid: Steroids; Wikipedia: Methandrostenolone
Metazocine
CA: CDSA Schedule I Section 11 Subsection 2 Metazocine
UK: MDA Part I Class A Section 1(a) Metazocine and Part II Class B Section 1(a) Metazocine
UN: Narcotics Part 1 Section 1 Metazocine and Psychotropics Schedule III Metazocine
US: CSA Schedule II Section c Subsection 14 Metazocine
PubChem: 3037886; ChemSpider: 391630; Wikipedia: Metazocine
Metenolone
CA: CDSA Schedule IV Section 23 Subsection 23 Metenolone
UK: MDA Part III Class C Section 1(b) Methenolone
US: CSA Schedule III Section f Subsection 1 Item 33 Methenolone
PubChem: 9054; ChemSpider: 2301378; Erowid: Steroids; Wikipedia: Metenolone
Metethoheptazine
CA: [not controlled] CDSA Schedule I Section 4 Subsection 3 Metethoheptazine
PubChem: 176888; ChemSpider: 154060; Wikipedia: Metethoheptazine
Meth§ 
CA: CDSA Schedule I Section 18 Methamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 23 Methamphetamine
UK: MDA Part I Class A Section 1(a) Methylamphetamine
US: CSA Schedule II Section d Subsection 2 Methamphetamine
PubChem: 1206; ChemSpider: 1169; Bluelight: Methamphetamine; Drugs Forum: Methamphetamine; Erowid: Meth; Wikipedia: Methamphetamine
Methabarbital
CA: CDSA Schedule IV Section 1 Subsection 17 Methabarbital
PubChem: 4099; ChemSpider: 3957; Wikipedia: Metharbital
Methadols
CA: CDSA Schedule I Section 6 Methadols
Methadone
CA: CDSA Schedule I Section 5 Subsection 4 Methadone
UK: MDA Part I Class A Section 1(a) Methadone
UN: Narcotics Part 1 Section 1 Methadone
US: CSA Schedule II Section c Subsection 15 Methadone
PubChem: 4095; ChemSpider: 3953; Bluelight: Methadone; Drugs Forum: Methadone; Erowid: Methadone; Wikipedia: Methadone
Methadone intermediate
CA: CDSA Schedule I Section 5 Subsection 1 Dimethylaminodiphenylbutanonitrile
UK: MDA Part I Class A Section 1(a) 4-Cyano-2-dimethylamino-4,4-diphenylbutane
UN: Narcotics Part 1 Section 1 Methadone intermediate
US: CSA Schedule II Section c Subsection 16 Methadone-intermediate
PubChem: 31331; ChemSpider: 29065
Methadone-intermediate
CA: CDSA Schedule I Section 5 Subsection 1 Dimethylaminodiphenylbutanonitrile
UK: MDA Part I Class A Section 1(a) 4-Cyano-2-dimethylamino-4,4-diphenylbutane
UN: Narcotics Part 1 Section 1 Methadone intermediate
US: CSA Schedule II Section c Subsection 16 Methadone-intermediate
PubChem: 31331; ChemSpider: 29065
Methadyl acetate
CA: CDSA Schedule I Section 6 Subsection 1 Acetylmethadol
UK: MDA Part I Class A Section 1(a) Methadyl acetate
UN: Narcotics Part 1 Section 1 Acetylmethadol
US: CSA Schedule I Section b Subsection 2 Acetylmethadol
PubChem: 10517; ChemSpider: 10080; Wikipedia: Acetylmethadol
Methamphetamine
CA: CDSA Schedule I Section 18 Methamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 23 Methamphetamine
UK: MDA Part I Class A Section 1(a) Methylamphetamine
US: CSA Schedule II Section d Subsection 2 Methamphetamine
PubChem: 1206; ChemSpider: 1169; Bluelight: Methamphetamine; Drugs Forum: Methamphetamine; Erowid: Meth; Wikipedia: Methamphetamine
Methamphetamine
PubChem: 1206; ChemSpider: 1169; Drugs Forum: Methamphetamine; Erowid: Methamphetamines; Wikipedia: Methamphetamine
Methamphetamine
UN: Psychotropics Schedule II Metamfetamine (Methamphetamine)
PubChem: 10836; ChemSpider: 10379; Drugs Forum: Methamphetamine; Wikipedia: Methamphetamine
Methamphetamine racemate
CA: CDSA Schedule I Section 18 Methamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 23 Methamphetamine
UK: MDA Part I Class A Section 1(a) Methylamphetamine
US: CSA Schedule II Section d Subsection 2 Methamphetamine
PubChem: 1206; ChemSpider: 1169; Bluelight: Methamphetamine; Drugs Forum: Methamphetamine; Erowid: Meth; Wikipedia: Methamphetamine
Methandienone
CA: CDSA Schedule IV Section 23 Subsection 22 Metandienone
UK: MDA Part III Class C Section 1(b) Methandienone
US: CSA Schedule III Section f Subsection 1 Item 30 Methandienone
PubChem: 6300; ChemSpider: 6061; Erowid: Steroids; Wikipedia: Methandrostenolone
Methandriol
CA: CDSA Schedule IV Section 23 Subsection 24 Methandriol
UK: MDA Part III Class C Section 1(b) Methandriol
US: CSA Schedule III Section f Subsection 1 Item 31 Methandriol
PubChem: 10632; ChemSpider: 199375; Erowid: Steroids; Wikipedia: Methandriol
Methandrostenolone‡ 
CA: CDSA Schedule IV Section 23 Subsection 22 Metandienone
UK: MDA Part III Class C Section 1(b) Methandienone
US: CSA Schedule III Section f Subsection 1 Item 30 Methandienone
PubChem: 6300; ChemSpider: 6061; Erowid: Steroids; Wikipedia: Methandrostenolone
2-(1,4-Methano-5,8-dimethoxy-1,2,3,4-tetrahydro-6-naphthyl)ethylamine
PubChem: 44349968; ChemSpider: 23206405; PiHKAL • info: 2C-G-5; Wikipedia: 2C-G
2-(1,4-Methano-5,8-dimethoxy-1,2,3,4-tetrahydro-6-naphthyl)-1-methylethylamine
PiHKAL • info: G5; Wikipedia: Ganesha (psychedelic)
3-Methanone(cyclopropyl)indole
CA: CDSA Schedule II Section 2 Subsection 6 3-Methanone(cyclopropyl)indole
Methaqualone
CA: CDSA Schedule III Section 3 Methaqualone
UK: MDA Part II Class B Section 1(a) Methaqualone
UN: Psychotropics Schedule II Methaqualone
US: CSA Schedule I Section e Subsection 3 Methaqualone
PubChem: 6292; ChemSpider: 6055; Bluelight: Methaqualone; Drugs Forum: Methaqualone; Erowid: Methaqualone; Wikipedia: Methaqualone
Metharbital‡ 
CA: CDSA Schedule IV Section 1 Subsection 17 Methabarbital
PubChem: 4099; ChemSpider: 3957; Wikipedia: Metharbital
Methasterone
US: CSA Schedule III Section f Subsection 1 Item 32 Methasterone and Item 73 2α,17α-Dimethyl-17β-hydroxy-5α-androstan-3-one
PubChem: 237186; ChemSpider: 207079; Bluelight: Superdrol; Erowid: Steroids; Wikipedia: Methasterone
Methcathinone
CA: CDSA Schedule III Section 21 2-Methylamino-1-phenyl-1-propanone
UK: MDA Part II Class B Section 1(a) Methcathinone
UN: Psychotropics Schedule I Methcathinone
US: CSA Schedule I Section f Subsection 5 Methcathinone
PubChem: 1576; ChemSpider: 1519; Bluelight: methcathinone; Drugs Forum: methcathinone; Erowid: Cathinone and methcathinone; Wikipedia: Methcathinone
Methenolone
CA: CDSA Schedule IV Section 23 Subsection 23 Metenolone
UK: MDA Part III Class C Section 1(b) Methenolone
US: CSA Schedule III Section f Subsection 1 Item 33 Methenolone
PubChem: 9054; ChemSpider: 2301378; Erowid: Steroids; Wikipedia: Metenolone
Metheptazine
CA: [not controlled] CDSA Schedule I Section 4 Subsection 4 Metheptazine
PubChem: 3047717; ChemSpider: 2310051; Wikipedia: Metheptazine
Methiopropamine
UK: MDA Temporary Class Drug Orders 2015 N-Methyl-1-(thiophen-2-yl)propan-2-amine
PubChem: 436156; ChemSpider: 385727; Erowid: Methiopropamine; Wikipedia: Methiopropamine
Methohexital
US: CSA Schedule IV Section c Subsection 35 Methohexital
PubChem: 9034; ChemSpider: 8683; Erowid: Barbiturates; Wikipedia: Methohexital
Methorphan‡ 
CA: CDSA Schedule I Section 10 Subsection 8 Racemethorphan
UK: MDA Part I Class A Section 1(a) Racemethorphan
UN: Narcotics Part 1 Section 1 Racemethorphan
US: CSA Schedule II Section c Subsection 24 Racemethorphan
PubChem: 3008 5359423; ChemSpider: 2901; Wikipedia: Methorphan
Methoxetamine
UK: MDA Part II Class B Section 1(d) Methoxetamine
UK: [revoked] MDA Temporary Class Drug Orders 2012 2-(Ethylamino)-2-(3-methoxyphenyl)cyclohexanone
ChemSpider: 24721792; Bluelight: Methoxetamine; Drugs Forum: Methoxetamine; Erowid: Methoxetamine; Wikipedia: Methoxetamine
4-Methoxyamphetamine
CA: CDSA Schedule I Section 19 Subsection 6 4-Methoxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 7 4-Methoxyamphetamine
UK: MDA Part I Class A Section 1(c) 4-Methoxyamphetamine
UN: Psychotropics Schedule I PMA
US: CSA Schedule I Section d Subsection 7 4-Methoxyamphetamine
PubChem: 31721; ChemSpider: 29417; Bluelight: PMA; Drugs Forum: PMA; Erowid: PMA; PiHKAL • info: 4-MA; Wikipedia: para-Methoxyamphetamine
5-Methoxy-N,N-diisopropyltryptamine
UK: MDA Part I Class A Section 1(b) 5-Methoxy-N,N-diisopropyltryptamine
US: CSA Schedule I Section d Subsection 20 5-Methoxy-N,N-diisopropyltryptamine
PubChem: 151182; ChemSpider: 133247; Bluelight: 5-MeO-DiPT; Drugs Forum: 5-MeO-DIPT; Erowid: 5-MeO-DIPT; TiHKAL • info: 5-MeO-DIPT; Wikipedia: 5-Methoxy-diisopropyltryptamine
2-(5-Methoxy-2,2-dimethyl-2,3-dihdrobenzo[b]furan-6-yl)-1-methylethylamine
PubChem: 16051705; ChemSpider: 13180083; PiHKAL • info: F-22; Wikipedia: F-22 (psychedelic)
5-Methoxy-N,N-dimethyltryptamine
UK: MDA Part I Class A Section 1(b) 5-Methoxy-N,N-dimethyltryptamine
US: CSA Schedule I Section d Subsection 15 5-Methoxy-N,N-dimethyltryptamine
PubChem: 1832; ChemSpider: 1766; Bluelight: 5-MeO-DMT; Drugs Forum: 5-MeO-DMT; Erowid: 5-MeO-DMT; TiHKAL • info: 5-MeO-DMT; Wikipedia: 5-MeO-DMT
2-Methoxyethyl(α-methyl-3,4-methylenedioxyphenethyl)amine
ChemSpider: 21106334; PiHKAL • info: MDMEOET; Wikipedia: Methylenedioxymethoxyethylamphetamine
2-(5-Methoxy-2-methyl-2,3-dihdrobenzo[b]furan-6-yl)-1-methylethylamine
PubChem: 13056773; ChemSpider: 21106309; PiHKAL • info: F2; Wikipedia: F-2 (psychedelic)
5-Methoxy-3,4-methylenedioxyamphetamine
CA: CDSA Schedule I Section 19 Subsection 10 5-Methoxy-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 11 5-Methoxy-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) 5-Methoxy-3,4-methylenedioxyamphetamine
UN: Psychotropics Schedule I MMDA
US: CSA Schedule I Section d Subsection 8 5-Methoxy-3,4-methylenedioxyamphetamine
PubChem: 26175; ChemSpider: 24386; Drugs Forum: MMDA; PiHKAL • info: MMDA; Wikipedia: MMDA (psychedelic)
β-Methoxy-3,4-methylenedioxyphenethylamine
UK: MDA Part I Class A Section 1(ba) β-Methoxy-3,4-methylenedioxyphenethylamine
PubChem: 44719487; ChemSpider: 21106264; PiHKAL • info: BOH; Wikipedia: BOH (drug)
Methoxyphenamine
UK: [not controlled] MDA Part I Class A Section 1(c) Methoxyphenamine
PubChem: 4117; ChemSpider: 3974; Wikipedia: Methoxyphenamine
Methyl benzyl ketone
CA: CDSA Schedule VI Part 1 Subsection 11 1-Phenyl-2-propanone
EU: Drug precursors Annex I Category 1 1-Phenyl-2-propanone
UK: MDA Drug precursors Annex I Category 1 1-Phenyl-2-propanone
UN: Precursors Table I 1-Phenyl-2-propanone
US: CSA Schedule II Section g Subsection 1 Item i Phenylacetone
PubChem: 7678; ChemSpider: 21106366; Erowid: P2P synthesis; Wikipedia: Phenylacetone
Methyl ester of benzoylecgonine
CA: CDSA Schedule I Section 2 Subsection 2 Cocaine
UK: MDA Part I Class A Section 1(a) Cocaine
UN: Narcotics Part 1 Section 1 Cocaine and Part 2 Section 4 Cocaine
US: CSA Schedule II Section b Subsection 4 Cocaine
PubChem: 5760; ChemSpider: 4475153; Bluelight: Cocaine; Drugs Forum: Cocaine; Erowid: Cocaine; Wikipedia: Cocaine
Methyl ethyl ketone
CA: CDSA Schedule VI Part 2 Subsection 4 Methyl ethyl ketone
EU: Drug precursors Annex I Category 3 Methylethylketone
UK: MDA Drug precursors Annex I Category 3 Methyl ethyl ketone
UN: Precursors Table II Methyl ethyl ketone
US: CSA Listed Chemicals Section b Subsection 6 2-Butanone
PubChem: 6569; ChemSpider: 6321; Wikipedia: Butanone
Methyl isobutyl ketone
US: CSA Listed Chemicals Section b Subsection 10 Methyl isobutyl ketone
PubChem: 7909; ChemSpider: 7621; Wikipedia: Methyl isobutyl ketone
Methylamine
US: CSA Listed Chemicals Section a Subsection 13 Methylamine
PubChem: 6329; ChemSpider: 6089; Erowid: Methylamine Synthesis; Wikipedia: Methylamine
2-Methylamino-1-phenyl-1-propanone
CA: CDSA Schedule III Section 21 2-Methylamino-1-phenyl-1-propanone
UK: MDA Part II Class B Section 1(a) Methcathinone
UN: Psychotropics Schedule I Methcathinone
US: CSA Schedule I Section f Subsection 5 Methcathinone
PubChem: 1576; ChemSpider: 1519; Bluelight: methcathinone; Drugs Forum: methcathinone; Erowid: Cathinone and methcathinone; Wikipedia: Methcathinone
4-Methylaminorex
CA: CDSA Schedule III Section 18 4-Methylaminorex
UK: MDA Part I Class A Section 1(a) 4-Methyl-aminorex
UN: Psychotropics Schedule I 4-Methylaminorex
US: CSA Schedule I Section f Subsection 6 (±)-cis-4-Methylaminorex
PubChem: 92196; ChemSpider: 83237; Drugs Forum: 4-MAR; Erowid: 4-Methyl-aminorex; Wikipedia: 4-Methylaminorex
4-Methyl-aminorex
CA: CDSA Schedule III Section 18 4-Methylaminorex
UK: MDA Part I Class A Section 1(a) 4-Methyl-aminorex
UN: Psychotropics Schedule I 4-Methylaminorex
US: CSA Schedule I Section f Subsection 6 (±)-cis-4-Methylaminorex
PubChem: 92196; ChemSpider: 83237; Drugs Forum: 4-MAR; Erowid: 4-Methyl-aminorex; Wikipedia: 4-Methylaminorex
(±)-cis-4-Methylaminorex
CA: CDSA Schedule III Section 18 4-Methylaminorex
UK: MDA Part I Class A Section 1(a) 4-Methyl-aminorex
UN: Psychotropics Schedule I 4-Methylaminorex
US: CSA Schedule I Section f Subsection 6 (±)-cis-4-Methylaminorex
PubChem: 92196; ChemSpider: 83237; Drugs Forum: 4-MAR; Erowid: 4-Methyl-aminorex; Wikipedia: 4-Methylaminorex
α-Methylaminovalerophenone
US: CSA Schedule I Section h Subsection 15 Pentedrone
PubChem: 57501499; ChemSpider: 26286729; Bluelight: Pentedrone; Drugs Forum: Pentedrone; Wikipedia: Pentedrone
Methylamphetamine
CA: CDSA Schedule I Section 18 Methamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 23 Methamphetamine
UK: MDA Part I Class A Section 1(a) Methylamphetamine
US: CSA Schedule II Section d Subsection 2 Methamphetamine
PubChem: 1206; ChemSpider: 1169; Bluelight: Methamphetamine; Drugs Forum: Methamphetamine; Erowid: Meth; Wikipedia: Methamphetamine
17α-Methyl-androsta-1,4-diene-3,17β-diol
US: CSA Schedule III Section f Subsection 1 Item 79 17α-Methyl-androsta-1,4-diene-3,17β-diol
17α-Methyl-androstan-3-hydroxyimine-17β-ol
US: CSA Schedule III Section f Subsection 1 Item 83 17α-Methyl-androstan-3-hydroxyimine-17β-ol
17α-Methyl-5α-androstan-17β-ol
US: CSA Schedule III Section f Subsection 1 Item 84 17α-Methyl-5α-androstan-17β-ol
PubChem: 54523413
17α-Methyl-androst-2-ene-3,17β-diol
US: CSA Schedule III Section f Subsection 1 Item 78 17α-Methyl-androst-2-ene-3,17β-diol
6α-Methyl-androst-4-ene-3,17-dione
US: CSA Schedule III Section f Subsection 1 Item 82 6α-Methyl-androst-4-ene-3,17-dione
PubChem: 11722357; ChemSpider: 9897073
Methylbenzene
CA: CDSA Schedule VI Part 2 Subsection 6 Toluene
EU: Drug precursors Annex I Category 3 Toluene
UK: MDA Drug precursors Annex I Category 3 Toluene
UN: Precursors Table II Toluene
US: CSA Listed Chemicals Section b Subsection 7 Toluene
PubChem: 1140; ChemSpider: 1108; Bluelight: Toluene; Drugs Forum: Toluene; Wikipedia: Toluene
α-Methylbenzeneethanamine
CA: CDSA Schedule I Section 19 Subsection 1 Amphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 1 Amphetamine
UK: MDA Part II Class B Section 1(a) Amphetamine
UN: Psychotropics Schedule II Amfetamine (Amphetamine)
US: CSA Schedule II Section d Subsection 1 Amphetamine
PubChem: 3007; ChemSpider: 13852819; Bluelight: Amphetamine; Drugs Forum: Amphetamine; Erowid: Amphetamine; Wikipedia: Amphetamine
Methylcathinone
CA: CDSA Schedule III Section 21 2-Methylamino-1-phenyl-1-propanone
UK: MDA Part II Class B Section 1(a) Methcathinone
UN: Psychotropics Schedule I Methcathinone
US: CSA Schedule I Section f Subsection 5 Methcathinone
PubChem: 1576; ChemSpider: 1519; Bluelight: methcathinone; Drugs Forum: methcathinone; Erowid: Cathinone and methcathinone; Wikipedia: Methcathinone
N-Methylcathinone
CA: CDSA Schedule III Section 21 2-Methylamino-1-phenyl-1-propanone
UK: MDA Part II Class B Section 1(a) Methcathinone
UN: Psychotropics Schedule I Methcathinone
US: CSA Schedule I Section f Subsection 5 Methcathinone
PubChem: 1576; ChemSpider: 1519; Bluelight: methcathinone; Drugs Forum: methcathinone; Erowid: Cathinone and methcathinone; Wikipedia: Methcathinone
Methyldesorphine
CA: CDSA Schedule I Section 1 Subsection 18 Methyldesorphine
UK: MDA Part I Class A Section 1(a) Methyldesorphine
UN: Narcotics Part 1 Section 1 Methyldesorphine
US: CSA Schedule I Section c Subsection 13 Methyldesorphine
PubChem: 5362518; ChemSpider: 4515065; Wikipedia: Methyldesorphine
Methyldienolone
US: CSA Schedule III Section f Subsection 1 Item 38 Methyldienolone
Erowid: Steroids; Wikipedia: Methyldienolone
Methyldihydromorphine
CA: CDSA Schedule I Section 1 Subsection 19 Methyldihydromorphine
UK: MDA Part I Class A Section 1(a) Methyldihydromorphine
UN: Narcotics Part 1 Section 1 Methyldihydromorphine
US: CSA Schedule I Section c Subsection 14 Methyldihydromorphine
PubChem: 5464303; ChemSpider: 4576611; Wikipedia: Methyldihydromorphine
6-Methyldihydromorphine
CA: CDSA Schedule I Section 1 Subsection 19 Methyldihydromorphine
UK: MDA Part I Class A Section 1(a) Methyldihydromorphine
UN: Narcotics Part 1 Section 1 Methyldihydromorphine
US: CSA Schedule I Section c Subsection 14 Methyldihydromorphine
PubChem: 5464303; ChemSpider: 4576611; Wikipedia: Methyldihydromorphine
5-Methyldihydromorphinone
CA: CDSA Schedule I Section 1 Subsection 20 Metopon
UK: MDA Part I Class A Section 1(a) Metopon
UN: Narcotics Part 1 Section 1 Metopon
US: CSA Schedule II Section b Subsection 1 Item viii Metopon
PubChem: 5359353; ChemSpider: 4514264; Wikipedia: Metopon
17α-Methyl-Δ1-dihydrotestosterone
US: CSA Schedule III Section f Subsection 1 Item 42 17α-Methyl-Δ1-dihydrotestosterone
PubChem: 7092657; ChemSpider: 5442174; Bluelight: Methyl-1-Testosterone; Drugs Forum: M-1-T; Erowid: Steroids; Wikipedia: Methyl-1-testosterone
17α-Methyl-3α,17β-dihydroxy-5α-androstane
US: CSA Schedule III Section f Subsection 1 Item 35 17α-Methyl-3α,17β-dihydroxy-5α-androstane
PubChem: 242493; ChemSpider: 211980; Erowid: Steroids
17α-Methyl-3β,17β-dihydroxy-5α-androstane
US: CSA Schedule III Section f Subsection 1 Item 34 17α-Methyl-3β,17β-dihydroxy-5α-androstane
PubChem: 101819; ChemSpider: 91994; Erowid: Steroids
17α-Methyl-3β,17β-dihydroxyandrost-4-ene
US: CSA Schedule III Section f Subsection 1 Item 36 17α-Methyl-3β,17β-dihydroxyandrost-4-ene
Erowid: Steroids
4-Methyl-2,5-dimethoxyamphetamine
CA: CDSA Schedule I Section 19 Subsection 3 4-Methyl-2,5-dimethoxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 4 4-Methyl-2,5-dimethoxyamphetamine
UN: Psychotropics Schedule I STP (DOM)
US: CSA Schedule I Section d Subsection 9 4-Methyl-2,5-dimethoxyamphetamine
PubChem: 85875; ChemSpider: 77462; Bluelight: DOM; Drugs Forum: DOM; Erowid: STP; PiHKAL • info: DOM; Wikipedia: 2,5-Dimethoxy-4-methylamphetamine
3,4-Methylenedioxyamphetamine
CA: CDSA Schedule I Section 19 Subsection 4 3,4-Methylenedioxyamphetamine (MDA)
CA: [revoked] CDSA Schedule III Section 1 Subsection 5 3,4-Methylenedioxyamphetamine (MDA)
UK: MDA Part I Class A Section 1(c) 3,4-Methylenedioxyamphetamine
UN: Psychotropics Schedule I Tenamfetamine (MDA)
US: CSA Schedule I Section d Subsection 10 3,4-Methylenedioxyamphetamine
PubChem: 1614; ChemSpider: 1555; Bluelight: MDA; Drugs Forum: MDA; Erowid: MDA; PiHKAL • info: MDA; Wikipedia: 3,4-Methylenedioxyamphetamine
1-(3,4-Methylenedioxybenzyl)butyl(ethyl)amine
UK: MDA Part I Class A Section 1(ba) 1-(3,4-Methylenedioxybenzyl)butyl(ethyl)amine
ChemSpider: 21106304; PiHKAL • info: ETHYL-K; Wikipedia: Ethylbenzodioxolylpentanamine
1-(3,4-Methylenedioxybenzyl)butyl(methyl)amine
UK: MDA Part I Class A Section 1(ba) 1-(3,4-Methylenedioxybenzyl)butyl(methyl)amine
PubChem: 17757316; ChemSpider: 21106348; PiHKAL • info: METHYL-K; Wikipedia: Methylbenzodioxolylpentanamine
3,4-Methylenedioxy-N-ethylamphetamine
CA: CDSA Schedule I Section 19 Subsection 12 N-Ethyl-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 13 N-Ethyl-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) N-Ethyl-3,4-methylenedioxyamphetamine
UN: Psychotropics Schedule I MDE (N-Ethyl MDA)
US: CSA Schedule I Section d Subsection 12 3,4-Methylenedioxy-N-ethylamphetamine
PubChem: 105039; ChemSpider: 94775; Bluelight: MDE; Drugs Forum: MDEA; Erowid: MDE; PiHKAL • info: MDE; Wikipedia: Methylenedioxyethylamphetamine
Methylenedioxymethamphetamine‡ 
CA: CDSA Schedule I Section 19 Subsection 8 N-Methyl-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 9 N-Methyl-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) N-Methyl-3,4-methylenedioxyamphetamine
UN: Psychotropics Schedule I MDMA
US: CSA Schedule I Section d Subsection 11 3,4-Methylenedioxymethamphetamine
PubChem: 1615; ChemSpider: 1556; Bluelight: MDMA; Drugs Forum: MDMA; Erowid: MDMA; PiHKAL • info: MDMA; Wikipedia: Methylenedioxymethamphetamine
3,4-Methylenedioxymethamphetamine
CA: CDSA Schedule I Section 19 Subsection 8 N-Methyl-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 9 N-Methyl-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) N-Methyl-3,4-methylenedioxyamphetamine
UN: Psychotropics Schedule I MDMA
US: CSA Schedule I Section d Subsection 11 3,4-Methylenedioxymethamphetamine
PubChem: 1615; ChemSpider: 1556; Bluelight: MDMA; Drugs Forum: MDMA; Erowid: MDMA; PiHKAL • info: MDMA; Wikipedia: Methylenedioxymethamphetamine
3,4-Methylenedioxymethcathinone
UK: MDA Part II Class B Section 1(aa) Methylone
US: CSA Schedule I Section d Subsection 47 3,4-Methylenedioxy-N-methylcathinone
PubChem: 45789647; ChemSpider: 21106350; Bluelight: Methylone; Drugs Forum: Methylone; Erowid: Methylone; Wikipedia: Methylone
3,4-Methylenedioxy-N-methylcathinone
UK: MDA Part II Class B Section 1(aa) Methylone
US: CSA Schedule I Section d Subsection 47 3,4-Methylenedioxy-N-methylcathinone
PubChem: 45789647; ChemSpider: 21106350; Bluelight: Methylone; Drugs Forum: Methylone; Erowid: Methylone; Wikipedia: Methylone
3,4-Methylenedioxyphenyl-2-propanone
CA: CDSA Schedule VI Part 1 Subsection 9 3,4-Methylenedioxyphenyl-2-propanone
EU: Drug precursors Annex I Category 1 3,4-Methylenedioxyphenylpropan-2-one
UK: MDA Drug precursors Annex I Category 1 3,4-Methylenedioxyphenyl-2-propanone
US: CSA Listed Chemicals Section a Subsection 12 3,4-Methylenedioxyphenyl-2-propanone
PubChem: 78407; ChemSpider: 70776; Erowid: MDP2P; Wikipedia: 3,4-Methylenedioxyphenylpropan-2-one
Methylenedioxypyrovalerone
CA: CDSA Schedule I Section 17.1 Methylenedioxypyrovalerone
EU: Substances Substances 3,4-Methylenedioxypyrovalerone
UK: MDA Part II Class B Section 1(aa) MDPV
US: CSA Schedule I Section d Subsection 37 3,4-Methylenedioxypyrovalerone
PubChem: 20111961; ChemSpider: 16788110; Bluelight: MDPV; Drugs Forum: MDPV; Erowid: MDPV; Wikipedia: Methylenedioxypyrovalerone
3,4-Methylenedioxypyrovalerone
CA: CDSA Schedule I Section 17.1 Methylenedioxypyrovalerone
EU: Substances Substances 3,4-Methylenedioxypyrovalerone
UK: MDA Part II Class B Section 1(aa) MDPV
US: CSA Schedule I Section d Subsection 37 3,4-Methylenedioxypyrovalerone
PubChem: 20111961; ChemSpider: 16788110; Bluelight: MDPV; Drugs Forum: MDPV; Erowid: MDPV; Wikipedia: Methylenedioxypyrovalerone
N-Methylephedrine
US: CSA Listed Chemicals Section a Subsection 19 N-Methylephedrine
PubChem: 64782 4374; ChemSpider: 58315; Wikipedia: N-Methylephedrine
4-Methyl-N-ethylcathinone
US: CSA Schedule I Section h Subsection 11 4-Methyl-N-ethylcathinone
PubChem: 52988259; ChemSpider: 25630091; Drugs Forum: (4-MEC); Erowid: 4-Methylethcathinone (4-MEC); Wikipedia: 4-Methylethcathinone
α-Methylfentanyl
CA: CDSA Schedule I Section 16 Subsection 8 α-Methylfentanyl
UK: MDA Part I Class A Section 1(d) α-Methylfentanyl
UN: Narcotics Part 1 Section 1 Alpha-Methylfentanyl and Section 3 Alpha-Methylfentanyl
US: CSA Schedule I Section b Subsection 7 Alpha-methylfentanyl
PubChem: 62281; ChemSpider: 56081; Wikipedia: Alphamethylfentanyl
3-Methylfentanyl
CA: CDSA Schedule I Section 16 Subsection 10 3-Methylfentanyl
UK: MDA Part I Class A Section 1(d) 3-Methylfentanyl
UN: Narcotics Part 1 Section 1 3-Methylfentanyl and Section 3 3-Methylfentanyl
US: CSA Schedule I Section b Subsection 34 3-Methylfentanyl
PubChem: 61996; ChemSpider: 55844; Wikipedia: 3-Methylfentanyl
17α-Methyl-4-hydroxynandrolone
US: CSA Schedule III Section f Subsection 1 Item 37 17α-Methyl-4-hydroxynandrolone
Erowid: Steroids
METHYL-K† 
UK: MDA Part I Class A Section 1(ba) 1-(3,4-Methylenedioxybenzyl)butyl(methyl)amine
PubChem: 17757316; ChemSpider: 21106348; PiHKAL • info: METHYL-K; Wikipedia: Methylbenzodioxolylpentanamine
4-Methylmethcathinone
EU: Substances Substances 4-Methylmethcathinone
UK: MDA Part II Class B Section 1(aa) 4-Methylmethcathinone; Mephedrone
US: CSA Schedule I Section d Subsection 36 4-Methylmethcathinone
PubChem: 45266826; ChemSpider: 21485694; Bluelight: Mephedrone; Drugs Forum: Mephedrone; Erowid: 4-Methylmethcathinone / Mephedrone; Wikipedia: Mephedrone
4-Methyl-N-methylcathinone
EU: Substances Substances 4-Methylmethcathinone
UK: MDA Part II Class B Section 1(aa) 4-Methylmethcathinone; Mephedrone
US: CSA Schedule I Section d Subsection 36 4-Methylmethcathinone
PubChem: 45266826; ChemSpider: 21485694; Bluelight: Mephedrone; Drugs Forum: Mephedrone; Erowid: 4-Methylmethcathinone / Mephedrone; Wikipedia: Mephedrone
N-Methyl-3,4-methylenedioxyamphetamine
CA: CDSA Schedule I Section 19 Subsection 8 N-Methyl-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 9 N-Methyl-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) N-Methyl-3,4-methylenedioxyamphetamine
UN: Psychotropics Schedule I MDMA
US: CSA Schedule I Section d Subsection 11 3,4-Methylenedioxymethamphetamine
PubChem: 1615; ChemSpider: 1556; Bluelight: MDMA; Drugs Forum: MDMA; Erowid: MDMA; PiHKAL • info: MDMA; Wikipedia: Methylenedioxymethamphetamine
2-(α-Methyl-3,4-methylenedioxyphenethylamino)ethanol
UK: MDA Part I Class A Section 1(ba) 2-(α-Methyl-3,4-methylenedioxyphenethylamino)ethanol
PubChem: 21645837; ChemSpider: 15637662; PiHKAL • info: MDHOET; Wikipedia: Methylenedioxyhydroxyethylamphetamine
α-Methyl-3,4-methylenedioxyphenethyl(prop-2-ynyl)amine
UK: MDA Part I Class A Section 1(ba) α-Methyl-3,4-methylenedioxyphenethyl(prop-2-ynyl)amine
ChemSpider: 21106336; PiHKAL • info: MDPL; Wikipedia: Methylenedioxypropargylamphetamine
N-Methyl-N-(α-methyl-3,4-methylenedioxyphenethyl)hydroxylamine
PubChem: 44350092; ChemSpider: 21106310; PiHKAL • info: FLEA; Wikipedia: Methylenedioxyhydroxymethamphetamine
O-Methyl-N-(α-methyl-3,4-methylenedioxyphenethyl)hydroxylamine
ChemSpider: 21106333; PiHKAL • info: MDMEO; Wikipedia: MDMEO
4-Methylmethylphenidate
UK: MDA Temporary Class Drug Orders 2015 4-Methylmethylphenidate
PubChem: 44296147; ChemSpider: 8281556; Wikipedia: 4-Methylmethylphenidate
4-Methyl-5-(4-methylphenyl)-4,5-dihydrooxazol-2-amine
UK: MDA Part I Class A Section 1(a) 4-Methyl-5-(4-methylphenyl)-4,5-dihydrooxazol-2-amine
PubChem: 20741615; Wikipedia: 4,4%27-Dimethylaminorex
α-Methyl-4-(methylthio)phenethylamine
UK: MDA Part I Class A Section 1(ba) α-Methyl-4-(methylthio)phenethylamine
UN: Psychotropics Schedule I 4-MTA
PubChem: 151900; ChemSpider: 133883; Erowid: 4-MTA; Wikipedia: 4-Methylthioamphetamine
Methylmorphine
CA: CDSA Schedule I Section 1 Subsection 2 Codeine
UK: MDA Part II Class B Section 1(a) Codeine
UN: Narcotics Part 1 Section 2 Codeine and Part 2 Section 1 Codeine
US: CSA Schedule II Section b Subsection 1 Item i Codeine, Schedule III Section e Subsection 1 Item i Codeine, Item ii Codeine and Schedule V Section c Subsection 1 Codeine
PubChem: 5284371; ChemSpider: 4447447; Drugs Forum: Codeine; Erowid: Codeine; Wikipedia: Codeine
3-Methylmorphine
CA: CDSA Schedule I Section 1 Subsection 2 Codeine
UK: MDA Part II Class B Section 1(a) Codeine
UN: Narcotics Part 1 Section 2 Codeine and Part 2 Section 1 Codeine
US: CSA Schedule II Section b Subsection 1 Item i Codeine, Schedule III Section e Subsection 1 Item i Codeine, Item ii Codeine and Schedule V Section c Subsection 1 Codeine
PubChem: 5284371; ChemSpider: 4447447; Drugs Forum: Codeine; Erowid: Codeine; Wikipedia: Codeine
2-Methyl-3-morpholino-1,1-diphenylpropanecarboxylic acid
CA: CDSA Schedule I Section 9 Subsection 2 Diphenylmorpholinoisovaleric acid
UN: Narcotics Part 1 Section 1 Moramide intermediate
US: CSA Schedule II Section c Subsection 17 Moramide-intermediate
PubChem: 567581; ChemSpider: 493453; Wikipedia: Moramide intermediate
Methylnaphthidate
UK: MDA Temporary Class Drug Orders 2015 Methylnaphthidate
PubChem: 49823708; ChemSpider: 24818258; Wikipedia: HDMP-28
Methylone
UK: MDA Part II Class B Section 1(aa) Methylone
US: CSA Schedule I Section d Subsection 47 3,4-Methylenedioxy-N-methylcathinone
PubChem: 45789647; ChemSpider: 21106350; Bluelight: Methylone; Drugs Forum: Methylone; Erowid: Methylone; Wikipedia: Methylone
α-Methylphenethylhydroxylamine
UK: MDA Part II Class B Section 1(a) α-Methylphenethylhydroxylamine
PubChem: 65546; ChemSpider: 58990
Methylphenidate
CA: CDSA Schedule III Section 2 Methylphenidate
UK: MDA Part II Class B Section 1(a) Methylphenidate
UN: Psychotropics Schedule II Methylphenidate
US: CSA Schedule II Section d Subsection 4 Methylphenidate
PubChem: 4158; ChemSpider: 4015; Bluelight: Methylphenidate; Drugs Forum: Methylphenidate; Erowid: Methylphenidate; Wikipedia: Methylphenidate
Methylphenobarbital
CA: CDSA Schedule IV Section 1 Subsection 16 Mephobarbital
US: CSA Schedule IV Section c Subsection 36 Methylphenobarbital
PubChem: 8271; ChemSpider: 7972; Bluelight: Methylphenobarbital; Erowid: Barbiturates; Wikipedia: Methylphenobarbital
Methylphenobarbital
CA: CDSA Schedule IV Section 1 Subsection 18 Methylphenobarbital
UK: MDA Part II Class B Section 1(a) Methylphenobarbitone
UN: Psychotropics Schedule IV Methylphenobarbital
PubChem: 8271; ChemSpider: 7972; Wikipedia: Methylphenobarbital
Methylphenobarbitone
CA: CDSA Schedule IV Section 1 Subsection 18 Methylphenobarbital
UK: MDA Part II Class B Section 1(a) Methylphenobarbitone
UN: Psychotropics Schedule IV Methylphenobarbital
PubChem: 8271; ChemSpider: 7972; Wikipedia: Methylphenobarbital
1-[1-(4-Methylphenyl)cyclohexyl]piperidine
CA: CDSA Schedule III Section 23 1-[1-(4-Methylphenyl)cyclohexyl]piperidine
UK: MDA Part II Class B Section 1(d) 1-[1-(4-Methylphenyl)cyclohexyl]piperidine
PubChem: 611754; ChemSpider: 531782
Methylphenylisonipecotonitrile
CA: CDSA Schedule I Section 3 Subsection 14 Methylphenylisonipecotonitrile
UK: MDA Part I Class A Section 1(a) 4-Cyano-1-methyl-4-phenylpiperidine
UN: Narcotics Part 1 Section 1 Pethidine intermediate A
US: CSA Schedule II Section c Subsection 19 Pethidine-intermediate-A
PubChem: 62513; ChemSpider: 56289; Erowid: Pethidine ; Wikipedia: Pethidine intermediate A
1-Methyl-4-phenylpiperidine-4-carboxylic acid
CA: CDSA Schedule I Section 3 Subsection 22 Pethidine intermediate C
UK: MDA Part I Class A Section 1(a) 1-Methyl-4-phenylpiperidine-4-carboxylic acid
UN: Narcotics Part 1 Section 1 Pethidine intermediate C
US: CSA Schedule II Section c Subsection 21 Pethidine-intermediate-C
PubChem: 101106; ChemSpider: 91344; Erowid: Pethidinic acid; Wikipedia: Pethidinic acid
1-(1-Methylpiperidin-2-ylmethyl)-3-(2-iodobenzoyl)indole
CA: CDSA Schedule II Section 2 Subsection 5 1-(1-Methylpiperidin-2-ylmethyl)-3-(2-iodobenzoyl)indole
PubChem: 10226340; ChemSpider: 8401830; Drugs Forum: AM-2233; Wikipedia: AM-2233
1-[(N-Methylpiperidin-2-yl)methyl]-3(1-naphthoyl)indole
CA: CDSA Schedule II Section 2 Subsection 2 1-[(N-Methylpiperidin-2-yl)methyl]-3(1-naphthoyl)indole
PubChem: 9929889; ChemSpider: 8105520; Wikipedia: AM-1220
N-Methyl-3-piperidyl benzilate
CA: CDSA Schedule III Section 8 N-Methyl-3-piperidyl benzilate (LBJ)
US: CSA Schedule I Section d Subsection 28 N-Methyl-3-piperidyl benzilate
PubChem: 62495; ChemSpider: 56274; Wikipedia: N-Methyl-3-piperidyl benzilate
N-Methylpseudoephedrine
US: CSA Listed Chemicals Section a Subsection 20 N-Methylpseudoephedrine
PubChem: 7059596; ChemSpider: 5415764; Wikipedia: N-Methylpseudoephedrine
4-Methyl-alpha-pyrrolidinopropiophenone
US: CSA Schedule I Section h Subsection 12 4-Methyl-alpha-pyrrolidinopropiophenone
PubChem: 6430745; ChemSpider: 4936084; Wikipedia: 4′-Methyl-α-pyrrolidinopropiophenone
Methyltestosterone
CA: CDSA Schedule IV Section 23 Subsection 25 Methyltestosterone
UK: MDA Part III Class C Section 1(b) Methyltestosterone
US: CSA Schedule III Section f Subsection 1 Item 40 Methyltestosterone
PubChem: 6010; ChemSpider: 5788; Erowid: Steroids; Wikipedia: Methyltestosterone
4-Methylthioamphetamine‡ 
UK: MDA Part I Class A Section 1(ba) α-Methyl-4-(methylthio)phenethylamine
UN: Psychotropics Schedule I 4-MTA
PubChem: 151900; ChemSpider: 133883; Erowid: 4-MTA; Wikipedia: 4-Methylthioamphetamine
α-Methylthiofentanyl
CA: CDSA Schedule I Section 16 Subsection 9 α-Methylthiofentanyl
UK: MDA Part I Class A Section 1(d) α-Methylthiofentanyl
UN: Narcotics Part 1 Section 1 Alpha-Methylthiofentanyl and Section 3 Alpha-Methylthiofentanyl
US: CSA Schedule I Section b Subsection 8 Alpha-methylthiofentanyl
PubChem: 62309; ChemSpider: 56104; Wikipedia: Alphamethylthiofentanyl
3-Methylthiofentanyl
CA: CDSA Schedule I Section 16 Subsection 11 3-Methylthiofentanyl
UK: MDA Part I Class A Section 1(d) 3-Methylthiofentanyl
UN: Narcotics Part 1 Section 1 3-Methylthiofentanyl and Section 3 3-Methylthiofentanyl
US: CSA Schedule I Section b Subsection 35 3-Methylthiofentanyl
PubChem: 62296; ChemSpider: 56092; Wikipedia: 3-Methylthiofentanyl
N-Methyl-1-(thiophen-2-yl)propan-2-amine
UK: MDA Temporary Class Drug Orders 2015 N-Methyl-1-(thiophen-2-yl)propan-2-amine
PubChem: 436156; ChemSpider: 385727; Erowid: Methiopropamine; Wikipedia: Methiopropamine
Methyltrienolone
CA: CDSA Schedule IV Section 23 Subsection 26 Metribolone
UK: MDA Part III Class C Section 1(b) Metribolone
US: CSA Schedule III Section f Subsection 1 Item 39 Methyltrienolone
PubChem: 261000; ChemSpider: 229099; Erowid: Steroids; Wikipedia: Metribolone
Methyprylon
CA: CDSA Schedule IV Section 17 Methyprylon
UK: MDA Part III Class C Section 1(a) Methyprylone
UN: Psychotropics Schedule IV Methyprylon
US: CSA Schedule III Section c Subsection 10 Methyprylon
PubChem: 4162; ChemSpider: 4018; Wikipedia: Methyprylon
Methyprylone
CA: CDSA Schedule IV Section 17 Methyprylon
UK: MDA Part III Class C Section 1(a) Methyprylone
UN: Psychotropics Schedule IV Methyprylon
US: CSA Schedule III Section c Subsection 10 Methyprylon
PubChem: 4162; ChemSpider: 4018; Wikipedia: Methyprylon
Metopon
CA: CDSA Schedule I Section 1 Subsection 20 Metopon
UK: MDA Part I Class A Section 1(a) Metopon
UN: Narcotics Part 1 Section 1 Metopon
US: CSA Schedule II Section b Subsection 1 Item viii Metopon
PubChem: 5359353; ChemSpider: 4514264; Wikipedia: Metopon
Metribolone
CA: CDSA Schedule IV Section 23 Subsection 26 Metribolone
UK: MDA Part III Class C Section 1(b) Metribolone
US: CSA Schedule III Section f Subsection 1 Item 39 Methyltrienolone
PubChem: 261000; ChemSpider: 229099; Erowid: Steroids; Wikipedia: Metribolone
Mexxy§ 
UK: MDA Part II Class B Section 1(d) Methoxetamine
UK: [revoked] MDA Temporary Class Drug Orders 2012 2-(Ethylamino)-2-(3-methoxyphenyl)cyclohexanone
ChemSpider: 24721792; Bluelight: Methoxetamine; Drugs Forum: Methoxetamine; Erowid: Methoxetamine; Wikipedia: Methoxetamine
MIBK
US: CSA Listed Chemicals Section b Subsection 10 Methyl isobutyl ketone
PubChem: 7909; ChemSpider: 7621; Wikipedia: Methyl isobutyl ketone
Mibolerone
CA: CDSA Schedule IV Section 23 Subsection 27 Mibolerone
UK: MDA Part III Class C Section 1(b) Mibolerone
US: CSA Schedule III Section f Subsection 1 Item 41 Mibolerone
PubChem: 19454; ChemSpider: 220460; Erowid: Steroids; Wikipedia: Mibolerone
Midazolam
CA: CDSA Schedule IV Section 18 Subsection 22.1 Midazolam
UK: MDA Part III Class C Section 1(a) Midazolam
UN: Psychotropics Schedule IV Midazolam
US: CSA Schedule IV Section c Subsection 37 Midazolam
PubChem: 4192; ChemSpider: 4047; Drugs Forum: Midazolam; Wikipedia: Midazolam
MMDA
CA: CDSA Schedule I Section 19 Subsection 10 5-Methoxy-3,4-methylenedioxyamphetamine
CA: [revoked] CDSA Schedule III Section 1 Subsection 11 5-Methoxy-3,4-methylenedioxyamphetamine
UK: MDA Part I Class A Section 1(c) 5-Methoxy-3,4-methylenedioxyamphetamine
UN: Psychotropics Schedule I MMDA
US: CSA Schedule I Section d Subsection 8 5-Methoxy-3,4-methylenedioxyamphetamine
PubChem: 26175; ChemSpider: 24386; Drugs Forum: MMDA; PiHKAL • info: MMDA; Wikipedia: MMDA (psychedelic)
Modafinil
US: CSA Schedule IV Section f Subsection 7 Modafinil
PubChem: 4236; ChemSpider: 4088; Drugs Forum: Modafinil; Erowid: Modafinil; Wikipedia: Modafinil
Mogadon® 
CA: CDSA Schedule IV Section 18 Subsection 24 Nitrazepam
UK: MDA Part III Class C Section 1(a) Nitrazepam
UN: Psychotropics Schedule IV Nitrazepam
US: CSA Schedule IV Section c Subsection 39 Nitrazepam
PubChem: 4506; ChemSpider: 4350; Drugs Forum: Nitrazepam; Erowid: Nitrazepam Synthesis; Wikipedia: Nitrazepam
Monase
CA: CDSA Schedule III Section 28 Etryptamine
UK: MDA Part I Class A Section 1(a) Etryptamine
UN: Psychotropics Schedule I Etryptamine
US: CSA Schedule I Section d Subsection 1 Alpha-ethyltryptamine
PubChem: 8367; ChemSpider: 8064; Bluelight: AET; Erowid: AET; TiHKAL • info: α-ET; Wikipedia: alpha-Ethyltryptamine
Monomethylpropion
CA: CDSA Schedule III Section 21 2-Methylamino-1-phenyl-1-propanone
UK: MDA Part II Class B Section 1(a) Methcathinone
UN: Psychotropics Schedule I Methcathinone
US: CSA Schedule I Section f Subsection 5 Methcathinone
PubChem: 1576; ChemSpider: 1519; Bluelight: methcathinone; Drugs Forum: methcathinone; Erowid: Cathinone and methcathinone; Wikipedia: Methcathinone
Moramide intermediate
CA: CDSA Schedule I Section 9 Subsection 2 Diphenylmorpholinoisovaleric acid
UN: Narcotics Part 1 Section 1 Moramide intermediate
US: CSA Schedule II Section c Subsection 17 Moramide-intermediate
PubChem: 567581; ChemSpider: 493453; Wikipedia: Moramide intermediate
Moramide-intermediate
CA: CDSA Schedule I Section 9 Subsection 2 Diphenylmorpholinoisovaleric acid
UN: Narcotics Part 1 Section 1 Moramide intermediate
US: CSA Schedule II Section c Subsection 17 Moramide-intermediate
PubChem: 567581; ChemSpider: 493453; Wikipedia: Moramide intermediate
Moramides
CA: CDSA Schedule I Section 9 Moramides
Morphanol‡ 
CA: CDSA Schedule I Section 10 Subsection 9 Racemorphan
UK: MDA Part I Class A Section 1(a) Racemorphan
UN: Narcotics Part 1 Section 1 Racemorphan
US: CSA Schedule II Section c Subsection 25 Racemorphan
PubChem: 3918 5359272; ChemSpider: 3781; Erowid: Racemorphan ; Wikipedia: Morphanol
Morpheridine
CA: CDSA Schedule I Section 3 Subsection 15 Morpheridine
UK: MDA Part I Class A Section 1(a) Morpheridine
UN: Narcotics Part 1 Section 1 Morpheridine
US: CSA Schedule I Section b Subsection 36 Morpheridine
PubChem: 61121; ChemSpider: 55069; Wikipedia: Morpheridine
Morphinans
CA: CDSA Schedule I Section 10 Morphinans
Wikipedia: Morphinan
Morphine
CA: CDSA Schedule I Section 1 Subsection 3 Morphine
UK: MDA Part I Class A Section 1(a) Morphine
UN: Narcotics Part 1 Section 1 Morphine and Part 2 Section 4 Morphine
US: CSA Schedule II Section b Subsection 1 Item ix Morphine and Schedule III Section e Subsection 1 Item vi Morphine
PubChem: 5288826; ChemSpider: 4450907; Bluelight: Morphine; Drugs Forum: Morphine; Erowid: Morphine; Wikipedia: Morphine
Morphine methobromide
UK: MDA Part I Class A Section 1(a) Morphine methobromide
UN: Narcotics Part 1 Section 1 Morphine methobromide
US: CSA Schedule I Section c Subsection 15 Morphine methobromide
PubChem: 5362445; ChemSpider: 16788217; Wikipedia: Morphine methylbromide
Morphine methylsulfonate
US: CSA Schedule I Section c Subsection 16 Morphine methylsulfonate
PubChem: 9929825; ChemSpider: 8105456
Morphine oxide
CA: CDSA Schedule I Section 1 Subsection 21 Morphine-N-oxide
UK: MDA Part I Class A Section 1(a) Morphine N-oxide
UN: Narcotics Part 1 Section 1 Morphine-N-oxide
US: CSA Schedule I Section c Subsection 17 Morphine-N-oxide
PubChem: 5362459; ChemSpider: 4515047; Wikipedia: Morphine-N-oxide
Morphine N-oxide
CA: CDSA Schedule I Section 1 Subsection 21 Morphine-N-oxide
UK: MDA Part I Class A Section 1(a) Morphine N-oxide
UN: Narcotics Part 1 Section 1 Morphine-N-oxide
US: CSA Schedule I Section c Subsection 17 Morphine-N-oxide
PubChem: 5362459; ChemSpider: 4515047; Wikipedia: Morphine-N-oxide
Morphine-N-oxide
CA: CDSA Schedule I Section 1 Subsection 21 Morphine-N-oxide
UK: MDA Part I Class A Section 1(a) Morphine N-oxide
UN: Narcotics Part 1 Section 1 Morphine-N-oxide
US: CSA Schedule I Section c Subsection 17 Morphine-N-oxide
PubChem: 5362459; ChemSpider: 4515047; Wikipedia: Morphine-N-oxide
1-(2-Morpholin-4-ylethyl)-3-(1naphthoyl)indole
CA: CDSA Schedule II Section 2 Subsection 2 1-(2-Morpholin-4-ylethyl)-3-(1naphthoyl)indole
UK: MDA Part II Class B Section 1(c) JWH-200
US: CSA Schedule I Section g Subsection 6 1-[2-(4-Morpholinyl)ethyl]-3-(1-naphthoyl)indole
PubChem: 10045570; ChemSpider: 8221134; Drugs Forum: JWH-200; Erowid: Spice Product; Wikipedia: JWH-200