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Alprazolam: Difference between revisions

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==Subjective effects==
==Subjective effects==
The general head space of alprazolam is described by many as one of intense sedation, relaxation, anxiety suppression and decreased inhibition.
{{Preamble/SubjectiveEffects}}                                                                         
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{{effects/base
{{effects/base
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|{{effects/physical|
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*'''[[Effect::Sedation]]''' -  Alprazolam is capable of producing strong sedation and can lead to a lethargic state. At higher levels, this causes users to suddenly feel as if they are extremely sleep deprived and have not slept for days, forcing them to sit down and generally feel as if they are constantly on the verge of passing out. This sleep deprivation increases proportionally to dosage and eventually becomes powerful enough to force a person into a deep state of unconsciousness.
*'''[[Effect::Sedation]]'''{{citation needed}} -  Alprazolam is capable of producing strong sedation and can lead to a lethargic state. At higher levels, this causes users to suddenly feel as if they are extremely sleep deprived and need to fight to stay awake. This sleep deprivation increases proportionally to dosage and eventually becomes powerful enough to force the user into a deep state of unconsciousness.
*'''[[Effect::Appetite enhancement]]''' - This effect is not particularly prominent, but is reported to occur in some people. It can have a synergistic effect when combined with [[cannabis]].
*'''[[Effect::Dizziness]]'''
*'''[[Effect::Muscle relaxation]]''' - In comparison to [[diazepam]] (Valium), alprazolam presents lesser amounts of muscle relaxation.
*'''[[Effect::Motor control loss]]'''
*'''[[Effect::Respiratory depression]]'''
*'''[[Effect::Seizure suppression]]'''
*'''[[Effect::Perception of bodily heaviness]]''' -  Alprazolam is reported to cause feelings of heaviness in the body. This effect can range from motor impairment and difficulty moving at lower doses to complete lethargy or inability to stand up or move at high doses.
*'''[[Effect::Perception of bodily heaviness]]''' -  Alprazolam is reported to cause feelings of heaviness in the body. This effect can range from motor impairment and difficulty moving at lower doses to complete lethargy or inability to stand up or move at high doses.
 
*'''[[Effect::Appetite enhancement]]'''{{citation needed}} - Some users report that alprazolam is capable of enhancing appetite in a manner similar to [[alcohol]] and that it can have a synergistic effect with [[cannabis]].
*'''[[Effect::Muscle relaxation]]'''{{citation needed}} - Alprazolam is reported to produce moderate muscle relaxation greater than that of [[alcohol]] but weaker than [[diazepam]] (''Valium'').
*'''[[Effect::Motor control loss]]'''{{citation needed}} - Alprazolam impairs motor control in a dose-dependent manner similar to [[alcohol]]. Higher doses significantly increase the risk of physical injury via falling over or stumbling into objects. This risk is especially prominent around stairs and slopes.
*'''[[Effect::Respiratory depression]]'''{{citation needed}}
*'''[[Effect::Dizziness]]'''{{citation needed}} - Dizziness is sometimes present with higher doses, although generally less than the dizzying effects of alcohol (colloquially known as "the spins").
*'''[[Effect::Seizure suppression]]'''{{citation needed}} - Alprazolam has seizure suppressing properties as a result of its [[GABA|GABA-mediated]] inhibitory effects on the nervous system. 


}}
}}
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|{{effects/cognitive|
|{{effects/cognitive|


The cognitive effects of alprazolam can be broken down into several components which progressively intensify proportional to dosage. The general head space of alprazolam is described by many as one of intense sedation, relaxation, anxiety suppression and decreased inhibition. It contains a large number of typical [[Psychoactive class::depressant]] cognitive effects.
The most prominent of these cognitive effects generally include:
*'''[[Effect::Analysis suppression]]'''
*'''[[Effect::Analysis suppression]]'''
*'''[[Effect::Anxiety suppression]]'''
*'''[[Effect::Anxiety suppression]]'''
*'''[[Effect::Compulsive redosing]]'''
*'''[[Effect::Compulsive redosing]]''' - Alprazolam produces [[disinhibition]] and [[euphoria]] which, along with its memory suppressing effects, can easily lead the user to black out and redose continually until their supply runs out or they lose consciousness. This effect can place the user at risk of fatal overdose from respiratory depression if they are consuming it with [[alcohol]] or other [[depressants]].
*'''[[Effect::Confusion]]''' - At heavy doses, alprazolam can cause confusion. This effect is a result of the drug suppressing basic cognitive functions at heavy doses, such as comprehension, memory, and reasoning skills.
*'''[[Effect::Confusion]]''' - Alprazolam can cause confusion at heavy doses. This effect is a result of the drug suppressing basic cognitive functions such as comprehension, memory, and reasoning skills.
*'''[[Effect::Delusions|Delusions of sobriety]]''' - This is the false belief that one is perfectly sober despite obvious evidence to the contrary such as severe cognitive impairment and an inability to fully communicate with others. It most commonly occurs at heavy dosages.
*'''[[Effect::Delusions|Delusions of sobriety]]''' - This is the false belief that one is perfectly sober despite obvious evidence to the contrary such as severe cognitive impairment and an inability to fully communicate with others. It most commonly occurs at heavy dosages.
*'''[[Effect::Disinhibition]]'''
*'''[[Effect::Disinhibition]]''' - Alprazolam has strong disinhibiting effects greater than that of other benzodiazepines like [[valium]] as well as [[alcohol]], but lower than that of [[GHB]].
*'''[[Effect::Dream potentiation]]'''
*'''[[Effect::Dream suppression]]''' - Benzodiazepines like alprazolam generally inhibit REM sleep and suppress the experience of dreaming. Sleep on benzodiazepines is generally reported to be deep and refreshing, although it should be noted that the actual sleep quality is lower which is why the use of benzodiazepines as long-term sleep aids is not advised.
*'''[[Effect::Emotion suppression]]''' - Although this compound primarily suppresses anxiety, it also dulls other emotions in a manner which is distinct but less intensive than that of [[antipsychotic]]s.
*'''[[Effect::Emotion suppression]]''' - Although alprazolam primarily suppresses anxiety, it also dulls other emotions in a manner which is distinct but less intensive than that of [[antipsychotics]].
*'''[[Effect::Euphoria]]''' - A distinct portion of users report feeling a marked sense of emotional well-being and comfort while under the influence of this substance. Because this does not occur regularly or consistently for most users, it is speculated that this effect only manifests among those who have unusually high baseline levels of anxiety.
*'''[[Effect::Euphoria]]''' - A distinct portion of users report feeling a marked sense of emotional well-being and comfort while under the influence of this substance. Because this does not occur regularly or consistently for most users, it is speculated that this effect only manifests among those who have unusually high baseline levels of anxiety.
*'''[[Effect::Language suppression]]''' - Alprazolam is known to cause slurred speech and difficulty communicating words in a clear fashion.
*'''[[Effect::Language suppression]]''' - Alprazolam is known to cause slurred speech and difficulty communicating words in a clear fashion.
*'''[[Effect::Memory suppression]]''' - Alprazolam primarily suppresses short-term memory, resulting in forgetfulness, and/or disorganized behaviors.
*'''[[Effect::Memory suppression]]''' - Alprazolam primarily suppresses short-term memory, resulting in forgetfulness, and/or disorganized behaviors.
**'''[[Effect::Amnesia]]'''
**'''[[Effect::Amnesia]]'''  
*'''[[Effect::Motivation suppression]]''' - Due to alprazolam's heavy sedation and lethargy, doing any type of activity that requires moving, or high amounts of effort may be difficult to do on this compound, especially at higher doses.
*'''[[Effect::Motivation suppression]]''' - Due to alprazolam's heavy sedation and lethargy, doing any type of activity that requires moving, or high amounts of effort may be difficult to do, especially at higher doses.
*'''[[Effect::Sleepiness]]'''
*'''[[Effect::Sleepiness]]'''
*'''[[Effect::Thought deceleration]]'''
*'''[[Effect::Thought deceleration]]'''
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{{effects/aftereffects|
{{effects/aftereffects|


*'''[[Effect::Anxiety|Rebound anxiety]]''' - Rebound anxiety is a commonly observed effect with [[anxiety suppression|anxiety relieving]] substances like [[benzodiazepines]]. It typically corresponds to the total duration spent under the substance's influence along with the total amount consumed in a given period, an effect which can easily lend itself to cycles of dependence and addiction.
*'''Rebound [[Effect::anxiety]]''' - Rebound anxiety is a commonly observed effect with [[anxiety suppression|anxiety relieving]] substances like [[benzodiazepines]]. It typically corresponds to the total duration spent under the substance's influence along with the total amount consumed in a given period, an effect which can easily lend itself to cycles of dependence and addiction.
*'''[[Effect::Dream potentiation]]'''<ref>Goyal, Sarita. "Drugs and Dreams." Indian Journal of Clinical Practice (n.d.): n. pag. Web.  | http://medind.nic.in/iaa/t13/i3/iaat13i3p624.pdf</ref> or '''[[Effect::Dream suppression]]'''
*'''[[Effect::Dream potentiation]]'''<ref>Goyal, Sarita. "Drugs and Dreams." Indian Journal of Clinical Practice (n.d.): n. pag. Web.  | http://medind.nic.in/iaa/t13/i3/iaat13i3p624.pdf</ref>
*'''[[Effect::Sleepiness|Residual sleepiness]]''' - While benzodiazepines can be used as an effective [[hypnotic|sleep-inducing]] aid, their effects may persist into the morning afterward, which may lead users to feeling "groggy" or "dull" for up to a few hours.  
*'''Residual [[Effect::sleepiness]]''' - While benzodiazepines can be used as an effective [[hypnotic|sleep-inducing]] aid, their effects may persist into the morning afterward, which may lead users to feeling "groggy" or "dull" for up to a few hours.  
*'''[[Effect::Thought deceleration]]'''  
*'''[[Effect::Thought deceleration]]'''  
*'''[[Effect::Thought disorganization]]'''  
*'''[[Effect::Thought disorganization]]'''  

Revision as of 01:56, 14 May 2019

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.

Summary sheet: Alprazolam
Alprazolam
Chemical Nomenclature
Common names Xanax, Alprazolam, Ksalol
Substitutive name Alprazolam
Systematic name 8-Chloro-1-methyl-6-phenyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine
Class Membership
Psychoactive class Depressant
Chemical class Benzodiazepine
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.

Inhaled
Dosage
Threshold 0.05 mg
Light 0.05 - 0.25 mg
Common 0.25 - 0.5 mg
Strong 0.5 - 1 mg
Heavy 1 mg +
Duration
Total 4 - 5 hours [2]
Onset 5 - 10 seconds
Come up 5 - 10 minutes
Peak 1 - 2 hours
Offset 2 - 3 hours


Oral
Dosage
Threshold 0.10 mg
Light 0.25 - 0.5 mg
Common 0.5 - 1.5 mg
Strong 1.5 - 2 mg
Heavy 2 mg +
Duration
Total 6 - 8 hours [2]
Onset 15 - 30 minutes
Come up 50 - 90 minutes
Peak 1 - 2 hours
Offset 2 - 4 hours
After effects 6 - 24 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
Stimulants
Depressants
Dissociatives


Alprazolam (also known as Xanax) is a depressant substance of the benzodiazepine class. Its characteristic effects include anxiety suppression, sedation, disinhibition, and muscle relaxation.[3]

Like other benzodiazepines, alprazolam binds to specific sites on the GABAA receptor.[4] It is commonly used for the medical treatment of panic disorder, generalized anxiety disorder (GAD), or social anxiety disorder (SAD).[5]

Alprazolam has a fast onset of action and symptomatic relief. Ninety percent of peak effects are achieved within the first hour of using in preparation for panic disorder and full peak effects are achieved in 1.5 and 1.6 hours respectively.[6][7] Peak benefits achieved for generalized anxiety disorder (GAD) may take up to a week.[8]

The sudden discontinuation of benzodiazepines can be potentially dangerous or life-threatening for individuals using regularly for extended periods of time, sometimes resulting in seizures or death.[9] It is highly recommended to taper one's dose by gradually lowering the amount taken each day for a prolonged period of time instead of stopping abruptly.[10]

Xanax (Alprazolam) 2 mg tri-score tablets

Chemistry

Alprazolam is a drug of the benzodiazepine class. Benzodiazepine drugs contain a benzene ring fused to a diazepine ring, which is a seven membered ring with the two nitrogen constituents located at R1 and R4. The benzyl ring of alprazolam is substituted at R8 with a chlorine group. Further, the diazepine ring is bonded at R5 to a phenyl ring. Alprazolam also contains a 1-methylated triazole ring fused to and incorporating R1 and R2 of its diazepine ring. Alprazolam belongs to a class of benzodiazepines containing this fused triazole ring, called triazolobenzodiazepines, distinguished by the suffix "-zolam".

Pharmacology

Benzodiazepines 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.[11] As this site is the most prolific inhibitory receptor set within the brain, its modulation results in the sedating (or calming effects) of alprazolam on the nervous system.

The anticonvulsant properties of benzodiazepines may be, in part or entirely, due to binding to voltage-dependent sodium channels rather than benzodiazepine receptors.[12]

Alprazolam causes a marked suppression of the hypothalamicpituitary-adrenal axis. Administration of alprazolam has been demonstrated to elicit an increase in striatal dopamine concentrations.[13]

Subjective effects

The general head space of alprazolam is described by many as one of intense sedation, relaxation, anxiety suppression and decreased inhibition.

Disclaimer: The effects listed below cite the Subjective Effect Index (SEI), an open research literature based on anecdotal user reports and the personal analyses of PsychonautWiki contributors. As a result, they should be viewed with a healthy degree of skepticism.

It is also worth noting that these effects will not necessarily occur in a predictable or reliable manner, although higher doses are more liable to induce the full spectrum of effects. Likewise, adverse effects become increasingly likely with higher doses and may include addiction, severe injury, or death ☠.

Physical effects

Visual effects

Paradoxical effects

Cognitive effects

After effects

Experience reports

There are currently no anecdotal reports which describe the effects of this compound within our experience index. Additional experience reports can be found here:

Toxicity and harm potential

Radar plot showing relative physical harm, social harm, and dependence of benzodiazepines in comparison to other drugs.[19]

Alprazolam has a low toxicity relative to dose.[20] However, it is [[Toxicity::potentially lethal when mixed with depressants like alcohol or opioids]].

It is strongly recommended that one use harm reduction practices when using this substance.

The acute oral LD50 in rats is 331–2171 mg/kg. Other experiments in animals have indicated that cardiopulmonary collapse can occur following massive intravenous doses of alprazolam.

Tolerance and addiction potential

Alprazolam is extremely physically and psychologically addictive.

Tolerance will develop to the sedative-hypnotic effects within a couple of days of continuous use.[21] After cessation, the tolerance returns to baseline in 7-14 days. However, in certain cases, this may take significantly longer in a manner which is proportional to the duration and intensity of one's long-term usage.

Alprazolam presents cross-tolerance with [[Cross-tolerance::all benzodiazepines]], meaning that after its consumption all benzodiazepines will have a reduced effect.

Discontinuation

Benzodiazepine 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 high blood pressure, seizures, and death.[22] Substances which lower the seizure threshold such as tramadol should be avoided during withdrawal.[citation needed] Abrupt discontinuation also causes rebound stimulation which presents as anxiety, insomnia and restlessness.[citation needed]

If one wishes to discontinue after a period of regular use, it is safest to reduce the dose each day by a very small amount for a couple of weeks until close to abstinence. If using a short half-life benzodiazepine such as alprazolam or etizolam, a longer acting variety such as diazepam or clonazepam can be substituted. Symptoms may still be present, but their severity will be reduced significantly.

For more information on tapering from benzodiazepines in a controlled manner, please see this guide. Small quantities of alcohol can also help to reduce the symptoms, but otherwise cannot be used as an effective tapering agent.

The duration and severity of withdrawal symptoms depend on a number of factors including the half-life of the substance used, tolerance and the duration of abuse. Major symptoms will usually start within just a few days after discontinuation and persist for around a week for shorter lasting benzodiazepines. Benzodiazepines with longer half-lives will exhibit withdrawal symptoms with a slow onset and extended duration.[citation needed]

Overdose

Benzodiazepine overdose may occur with extremely high doses or, more commonly, when it is taken with other depressants. This risk is especially present with other GABAergic depressants, such as barbiturates and alcohol, since they work in a similar fashion but bind to distinct sites on the GABAA receptor, resulting in significant cross-potentiation.[citation needed]

Benzodiazepine overdose is a medical emergency that may lead to a coma, permanent brain injury or death if not treated promptly. Symptoms may include severe slurred speech, confusion, delusions, respiratory depression, and non-responsiveness. The user might seem like they are sleepwalking. The user is also more susceptible to consume more of the same or another substance due to their impaired judgement, which is typically not seen with other substances during overdose.

Benzodiazepine overdoses may be treated effectively in a hospital environment, with generally favorable outcomes. Care is primarily supportive in nature, although overdoses are sometimes treated with flumazenil, a GABAA antagonist[23] or additional procedures such as adrenaline injections if other substances are involved.[citation needed]

Dangerous interactions

Warning: Many psychoactive substances that are reasonably safe to use on their own can suddenly become dangerous and even life-threatening when combined with certain other substances. The following list provides some known dangerous interactions (although it is not guaranteed to include all of them).

Always conduct independent research (e.g. Google, DuckDuckGo, PubMed) to ensure that a combination of two or more substances is safe to consume. Some of the listed interactions have been sourced from TripSit.

  • Depressants (1,4-Butanediol, 2M2B, alcohol, benzodiazepines, barbiturates, GHB/GBL, methaqualone, opioids) - This combination potentiates the muscle relaxation, amnesia, sedation, and respiratory depression caused by one another. At higher doses, it can lead to a sudden, unexpected loss of consciousness along with a dangerous amount of depressed respiration. There is also an increased risk of suffocating on one's vomit while unconscious. If nausea or vomiting occurs before a loss of consciousness, users should attempt to fall asleep in the recovery position or have a friend move them into it.
  • Dissociatives - This combination can unpredictably potentiate the amnesia, sedation, motor control loss and delusions that can be caused by each other. It may also result in a sudden loss of consciousness accompanied by a dangerous degree of respiratory depression. If nausea or vomiting occurs before consciousness is lost, users should attempt to fall asleep in the recovery position or have a friend move them into it.
  • Stimulants - Stimulants mask the sedative effect of depressants, which is the main factor most people use to gauge their level of intoxication. Once the stimulant effects wear off, the effects of the depressant will significantly increase, leading to intensified disinhibition, motor control loss, and dangerous black-out states. This combination can also potentially result in severe dehydration if one's fluid intake is not closely monitored. If choosing to combine these substances, one should strictly limit themselves to a pre-set schedule of dosing only a certain amount per hour until a maximum threshold has been reached.
  • International: Alprazolam is included under the United Nations Convention on Psychotropic Substances as Schedule IV.[24]
  • Australia: Alprazolam was originally a Schedule 4 (prescription only) medication; however, as of January 2014, it will become a Schedule 8 medication, subjecting it to more rigorous prescribing requirements.[25]
  • Austria: Alprazolam is legal for medical use under the AMG (Arzneimittelgesetz Österreich) and illegal when sold or possessed without a prescription under the SMG (Suchtmittelgesetz Österreich).[citation needed]
  • Germany: Alprazolam is in Anlage III (BtmG) prescription drug only.[citation needed]
  • Ireland: Alprazolam is a Schedule 4 medicine.[26]
  • Italy: Alprazolam is a schedule IV drug (Tabella 4) of the "Testo unico sulla droga (D.P.R. 309/90)". When prescribed for medical use it falls under Pharmaceuticals section B and E (Tabella medicinali sezione B ed E).[27][28]
  • Sweden: Alprazolam is a prescription drug in List IV (Schedule 4) under the Narcotics Drugs Act (1968).[29]
  • The Netherlands: Alprazolam is a List 2 substance of the Opium Law and is available for prescription.[citation needed]
  • United Kingdom: Alprazolam is a Class C drug under the UK drug misuse classification system. It can be obtained as a private prescription, but not through the NHS.[30]
  • United States: Alprazolam is a prescription medication assigned to Schedule IV of the Controlled Substances Act by the DEA.[31]

See also

References

  1. Risks of Combining Depressants - TripSit 
  2. 2.0 2.1 Reissig, C. J., Harrison, J. A., Carter, L. P., Griffiths, R. R. (2015). "Inhaled vs. oral alprazolam: subjective, behavioral and cognitive effects, and modestly increased abuse potential". Psychopharmacology. doi:10.1007/s00213-014-3721-0. 
  3. Benzodiazepine Metabolism: An Analytical Perspective" (PubMed.gov / NCBI) | http://www.ncbi.nlm.nih.gov/pubmed/18855614
  4. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4303399/
  5. FDA approved labeling for Xanax revision 08/23/2011 | http://www.accessdata.fda.gov/drugsatfda_docs/label/2011/018276s045lbl.pdf
  6. Pharmacokinetics and Pharmacodynamics of Alprazolam after Oral and IV Administration (PubMed.gov / NCBI) | http://www.ncbi.nlm.nih.gov/pubmed/6152055
  7. The Speed of Onset of Action of Alprazolam-XR Compared to Alprazolam-CT in Panic Disorder (PubMed.gov / NCBI) | http://www.ncbi.nlm.nih.gov/pubmed/17514187
  8. Clinical Pharmacology, Clinical Efficacy, and Behavioral Toxicity of Alprazolam: A Review of the Literature | http://onlinelibrary.wiley.com/doi/10.1111/j.1527-3458.2004.tb00003.x/pdf
  9. A fatal case of benzodiazepine withdrawal. (PubMed.gov / NCBI) | http://www.ncbi.nlm.nih.gov/pubmed/19465812
  10. Canadian Guideline for Safe and Effective Use of Opioids for Chronic Non-Cancer Pain - Appendix B-6: Benzodiazepine Tapering | http://nationalpaincentre.mcmaster.ca/opioid/cgop_b_app_b06.html
  11. Benzodiazepine interactions with GABA receptors (PubMed.gov / NCBI) | http://www.ncbi.nlm.nih.gov/pubmed/6147796
  12. Benzodiazepines, but not beta carbolines, limit high frequency repetitive firing of action potentials of spinal cord neurons in cell culture. (PubMed.gov / NCBI) | http://www.ncbi.nlm.nih.gov/pubmed/2450203
  13. Role of dopaminergic and serotonergic systems on behavioral stimulatory effects of low-dose alprazolam and lorazepam (PubMed.gov / NCBI) | http://www.ncbi.nlm.nih.gov/pubmed/11226811
  14. http://www.ncbi.nlm.nih.gov/pubmed/18922233 | Saïas T, Gallarda T | Paradoxical aggressive reactions to benzodiazepine use: a review
  15. Paton C | Benzodiazepines and disinhibition: a review | Psychiatr Bull R Coll Psychiatr | http://pb.rcpsych.org/cgi/reprint/26/12/460.pdf
  16. Bond AJ | Drug-induced behavioural disinhibition: incidence, mechanisms and therapeutic implications | CNS Drugs
  17. Drummer OH | Benzodiazepines—effects on human performance and behavior | Forensic Sci Rev
  18. Goyal, Sarita. "Drugs and Dreams." Indian Journal of Clinical Practice (n.d.): n. pag. Web. | http://medind.nic.in/iaa/t13/i3/iaat13i3p624.pdf
  19. Development of a rational scale to assess the harm of drugs of potential misuse (ScienceDirect) | http://www.sciencedirect.com/science/article/pii/S0140673607604644
  20. Benzodiazepine metabolism: an analytical perspective (PubMed.gov / NCBI) | http://www.ncbi.nlm.nih.gov/pubmed/18855614
  21. Principles and Practice of Psychopharmacotherapy | http://books.google.com/books?id=_ePK9wwcQUMC&pg=PA535
  22. Lann, M. A., Molina, D. K. (June 2009). "A fatal case of benzodiazepine withdrawal". The American Journal of Forensic Medicine and Pathology. 30 (2): 177–179. doi:10.1097/PAF.0b013e3181875aa0. ISSN 1533-404X. 
  23. Hoffman, E. J., Warren, E. W. (September 1993). "Flumazenil: a benzodiazepine antagonist". Clinical Pharmacy. 12 (9): 641–656; quiz 699–701. ISSN 0278-2677. 
  24. List of Psychotropic Substances under International Control | http://www.incb.org/documents/Psychotropics/green_lists/Green_list_ENG_2014_85222_GHB.pdf
  25. Alprazolam to be rescheduled from next year | http://www.australiandoctor.com.au/news/latest-news/alprazolam-to-be-rescheduled-from-next-year
  26. Misuse Of Drugs (Amendment) Regulations | http://www.irishstatutebook.ie/1993/en/si/0342.html
  27. Tabella IV Sostanze stupefacenti http://www.salute.gov.it/imgs/C_17_pagineAree_3729_listaFile_itemName_3_file.pdf
  28. Tabella Medicinali D.P.R. 309/90 http://www.salute.gov.it/imgs/C_17_pagineAree_3729_listaFile_itemName_4_file.xls
  29. "Läkemedelsverkets föreskrifter (LVFS 2011:10) om förteckningar över narkotika" [Medical Products Agency on the lists of drugs] | http://www.lakemedelsverket.se/upload/lvfs/konsoliderade/LVFS_2011_10_konsoliderad_tom_2012_6.pdf
  30. Misuse of Drugs Act 1971 (c. 38) | http://www.legislation.gov.uk/ukpga/1971/38/schedules
  31. DEA, Drug Scheduling | http://www.deadiversion.usdoj.gov/schedules/index.html