Methadone

opioidhabit-formingdepressant

A synthetic opioid drug used as an analgesic and is often used in detoxification off of other opioids. As it has a much ...

Methamnetamine

methylnaphetamine, mnt, n-methyl-pal-287

psychedelicstimulantresearch-chemical

A selective serotonin releaser, which also shows some light psychedelic activity. Almost always taken with a stimulant, ...

Methamphetamine

meth, desoxyn, tik

stimulanthabit-formingcommon

A fairly common and very strong CNS stimulant. It is sometimes prescribed in the form of desoxyn for ADHD and severe obe...

Methaqualone

ludes, quaaludes, qualudes +1 more

depressanthabit-forming

A pharmaceutical depressant and sedative phased out due to the better safety profile of benzodiazepines, part of the Qua...

Methedrone

bk-pmma

stimulantresearch-chemicalhabit-forming

BK-PMMA Closely related to PMMA and others. Stimulant....

Methiodone

opioidhabit-formingdepressant

Methiodone (IC-26, WIN 1161-3) is a synthetic opioid analgesic and methadone analogue developed by Sterling Drug Inc. In...

Methoxphenidine

2-meo-diphenidine, methoxyphenidine, 2-mxp +1 more

dissociativeresearch-chemicaltentative

A dissociative from the diarylethylamine class, a more potent analogue of diphenidine. Known to be unpredictable, and ca...

Methoxyacetyl-Fentanyl

maf, desfluoroocfentanil

depressantresearch-chemicalhabit-forming

A quite potent fentanyl analogue....

Methoxyketamine

2-meo-ketamine

dissociativeresearch-chemicalhabit-forming

An arylcyclohexylamine drug and analogue of ketamine, though slightly less potent. Produces similar dissociative and ana...

Methylmethaqualone

mmq

depressantresearch-chemicalhabit-forming

A more potent analogue of methaqualone with a short duration. Thought to be potentially neurotoxic. Has pro-convulsive e...

Methylmorphenate

stimulantresearch-chemicalhabit-forming

Stimulant of the phenylmorpholine class, an analogue of Methylphenidate where the piperidine ring has been replaced by a...

Methylone

bk-mdma, m1, mdmc

stimulantpsychedelicresearch-chemical

βk-MDMA is a cathinone stimulant and empathogen, similar in structure to MDMA, though more stimulating and less empathog...

Methylphenidate

mph, ritalin, concerta +1 more

stimulanthabit-formingcommon

A psychostimulant commonly used in the treatment of ADHD, narcolepsy and obesity, particularly in the EU instead of Adde...

Methyprylon

noludar

depressanthabit-formingtentative

Sedative of the pipeidinedone family. Was used for treating insomnia, yet is rarely used today due to substances with fe...

Metizolam

metiz, desmethyletizolam

benzodiazepineresearch-chemicaldepressant

Also known as desmethyletizolam, a thienodiazepine similar in effects and structure to etizolam, but around half as pote...

Mexazolam

melex, sedoxil

depressanthabit-forming

Benzodiazepine derivative that has been trialed for anxiety and was found to be effective for anxiety at one week week f...

Mexedrone

4-mmeoc

empathogenstimulantresearch-chemical

Mexedrone is a stimulant drug of the cathinone class. It alters the reuptake of serotonin, dopamine, and norepinephrine ...

Midazolam

benzodiazepinehabit-formingdepressant

A common hypnotic, sedative and anxiolytic benzodiazepine. High doses may cause amnesia and loss of inhibitions. Unusual...

Modafinil

provigil

stimulanthabit-formingnootropic

A wakefulness promoting, long acting stimulant which is typically only used functionally, because there is no real eupho...

Morpheridine

opioiddepressanthabit-forming

Is a 4-Phenylpiperidine derivative that is related to Pehidine. It is roughly 4x as potent as the parent compound, does ...

Morphine

opioidhabit-formingcommon

The prototypical opioid drug, a powerful analgesic with euphoric qualities, found in the seeds and wax of the plant papa...

N2O

laughing_gas, n20, n2o +1 more

dissociativehabit-formingcommon

Nitrous oxide, also known as laughing gas, often inhaled through balloons filled with canisters of the gas.. A short-act...

NEB

n-ethylbuphedrone

stimulantresearch-chemicalhabit-forming

N-Ethylbuphedrone, an uncommon substituted cathinone. First appeared around 2011 but has not become popular. Effects sho...

Naphyrone

stimulantresearch-chemicalhabit-forming

A drug derived from pyrovalerone which acts as a TRI, producing stimulating effects. Had been sold in a blend called "NR...

Total substances: 555 · Last synced: 3/28/2026