Metizolam

Revision as of 02:25, 7 November 2015 by >Josikins
Template:Proofread

Fatal overdose may occur when benzodiazepines are combined with other depressants such as opiates, barbiturates, gabapentinoids, thienodiazepines, alcohol or other GABAergic substances.[1]

It is strongly discouraged to combine these substances, particularly in common to heavy doses.

Metizolam (also known as desmethyletizolam) is a short-acting psychoactive drug of the thienodiazepine class that is closely related to etizolam. It has a 60% longer half life and 50% less potency than etizolam. It has been shown by annecdotal reports to produce depressant, anxiolytic, sedative, hypnotic, muscle relaxant, anticonvulsant, and amnestic effects.

Metizolam
Chemical Nomenclature
Common names Metizolam, Desmethyletizolam
Systematic name 4-(2-chlorophenyl)-2-ethyl-6H-thieno[3,2-f] [1,2,4]triazolo[4,3-a] [1,4]diazepine
Class Membership
Psychoactive class Depressant
Chemical class Thienodiazepine
Routes of Administration

WARNING: Always start with lower doses due to differences between individual body weight, tolerance, metabolism, and personal sensitivity. See responsible use section.



Oral
Dosage
Threshold < 1 mg
Light 1 - 2 mg
Common 2 - 4 mg
Strong 4 - 6 mg
Heavy 6 mg +
Duration
Total 5 - 8 hours
Onset 30 - 90 minutes
After effects 10 - 30 hours









DISCLAIMER: PW's dosage information is gathered from users and resources for educational purposes only. It is not a recommendation and should be verified with other sources for accuracy.

Interactions

This compound was patented by a japanese company in 1995 as an anti-anxiety medication[2][3][4] . Despite this however, it has little to no history of human usage prior to its release as a grey area research chemical by online vendors in September 2015.

Chemistry

 

This chemistry section is incomplete.

You can help by adding to it.

Pharmacology

Thienzodiazepines produce a variety of effects by binding to the benzodiazepine receptor site and magnifying the efficiency and effects of the neurotransmitter gamma aminobutyric acid (GABA) by acting on its receptors.[5] As this site is the most prolific inhibitory receptor within the brain, its modulation results in the sedating (or calming effects) of metizolam on the nervous system.

Subjective effects

The effects listed below are based upon the subjective effects index and personal experiences of PsychonautWiki contributors. The listed effects will rarely (if ever) occur all at once, but heavier dosages will increase the chances and are more likely to induce a full range of effects.

Physical effects

Cognitive effects

Toxicity and harm potential

The toxicity and long-term health effects of recreational metizolam use have not been studied in any scientific context and the exact toxic dosage is unknown. This is because metizolamT is a research chemical with very little history of human usage. Anecdotal evidence from people within the psychedelic community who have tried metizolam suggests that there are no negative health effects attributed to simply trying this drug at low to moderate doses or using it very sparingly (but nothing can be completely guaranteed).

Lethal dosage

The lethal dosage of metizolam has not been established; however, (like many benzodiazepines) it has a large therapeutic index and margin of safety. Complications may arise when administered in excess as this compound has not been formally studied and has little to no history of human usage.

As with all GABAergic drugs, overdose can be lethal when mixed with other depressants including alcohol or opioids.

Tolerance and addiction potential

Tolerance will develop to the sedative-hypnotic effects within a couple of days of repeated administration. Abrupt discontinuation of metizolam following regular dosing over several days can result in a withdrawal phase which includes rebound symptoms such as increased anxiety and insomnia. It is possible to gradually reduce the dose over the course of several days, which will lengthen the duration of the withdrawal period, but reduce the perceived intensity.

Thienzodiazepine discontinuation is notoriously difficult; it is potentially life-threatening for individuals using regularly to discontinue use without tapering their dose over a period of weeks. There is an increased risk of seizure following discontinuation. Drugs which lower the seizure threshold such as tramadol should be avoided during withdrawal.

Dangerous interactions

Although many drugs are safe on their own, they can become dangerous and even life-threatening when combined with other substances. The list below contains some common potentially dangerous combinations, but may not include all of them. Certain combinations may be safe in low doses of each but still increase the potential risk of death. Independent research should always be done to ensure that a combination of two or more substances is safe before consumption.

  • Depressants (1,4-Butanediol, 2-methyl-2-butanol, alcohol, barbiturates, GHB/GBL, methaqualone, opioids) - This combination can result in dangerous or even fatal levels of respiratory depression. These substances also potentiate the muscle relaxation, sedation and amnesia caused by one another and can lead to unexpected loss of consciousness at high doses. There is also an increased risk of vomiting during unconsciousness and death from the resulting suffocation. If this occurs, users should attempt to fall asleep in the recovery position or have a friend move them into it.
  • Dissociatives - This combination can result in an increased risk of vomiting during unconsciousness and death from the resulting suffocation. If this occurs, users should attempt to fall asleep in the recovery position or have a friend move them into it.
  • Stimulants - It is dangerous to combine thienzodiazepines with stimulants due to the risk of excessive intoxication. Stimulants decrease the sedative effect of benzodiazepines, which is the main factor most people consider when determining their level of intoxication. Once the stimulant wears off, the effects of thienzodiazepines will be significantly increased, leading to intensified disinhibition as well as other effects. If combined, one should strictly limit themselves to only dosing a certain amount of thienzodiazepines per hour. This combination can also potentially result in severe dehydration if hydration is not monitored.
 

This legality section is a stub.

As such, it may contain incomplete or wrong information. You can help by expanding it.

Metizolam is currently a grey area compound within most parts of the world. This means that it is not known to be specifically illegal within any country, but people may still be charged for its possession under certain circumstances such as under analogue laws and with intent to sell or consume.

Preparation methods

Preparation methods for this compound within our preparation index include:

See also

References

  1. Risks of Combining Depressants - TripSit 
  2. Heteroaromaten mit anellierten Siebenringen, III. Umwandlung von Thienotriazolooxazepinen in Diazepine | https://dx.doi.org/10.1002%2Fjlac.197819780806
  3. Triazolothienodiazepine compounds | http://www.google.com/patents/US3904641
  4. Thienylazole compound and thienotriazolodiazepine compound | http://www.google.com/patents/EP0776892A1
  5. Benzodiazepine interactions with GABA receptors | http://www.ncbi.nlm.nih.gov/pubmed/6147796