Depressant

Oxazolam

Also called Oxazolazepam, Tranquit, Hializan

Original Wikipedia articleen.wikipedia.org/wiki/Oxazolam revision used (24 October 2026)

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Common dose · Oral10–15 mg TS

Dosage

Oral

Source	Threshold	Light	Common	Strong	Heavy
TripSit	–	5–10 mg TS	10–15 mg TS	15–30 mg+ TS	–

TripSit dose text

TripSit's factsheet also states its doses as text.

Light: 5-10mg Common: 10-15mg Strong: 15-30mg+ TS

What dose are you on? (self-reported, unverified)

Read this first. These numbers come from anonymous visitors typing in a box. Nobody checks them. People misjudge, mistype, troll, or take untested products of unknown strength. They are not a dose guide and never override the sourced table above. They exist only so the sourced ranges can be compared with what people say they take. If you are deciding what to take, use the sourced table, start low, and read the risks section.

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Duration

TripSit factsheet

Onset: 30-90 minutes TS
Duration: 6-12 hours TS
Aftereffects: 6-12 hours TS

Mixing

For best safety practice, don't mix this drug with other depressants.

Why: respiratory depression. PsychonautWiki says:

“Respiratory depression (also known as hypoventilation) can be described as a reduced urge to breathe that can be fatal depending on its intensity.” (PsychonautWiki, Respiratory depression, revision 150612)
“... otherwise safe dosages of these compounds can become fatal when combined with even small amounts of other classes of depressant. For example, benzodiazepines combined with opioids are an extremely common cause of fatal respiratory depression. It is therefore strongly discouraged to combine these depressants at any dosage range.” (PsychonautWiki, Respiratory depression, revision 150612)
“The most common cause of substance-related deaths is the combination of depressants (such as opiates, benzodiazepines, or alcohol) with other depressants.” (PsychonautWiki, Responsible drug use, revision 168206)
“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.” (PsychonautWiki, dangerous interactions table, "Depressants" row, revision 156847)

Quotes from PsychonautWiki, CC BY-SA 4.0.

Acute combinations: what happens when these are taken close together. Entries backed by a medical journal or agency are listed first.

Backed by medical journals

Awaiting sourcePeer-reviewed reports on acute combinations, from PubMed and the journals the harm reduction sites cite.

Risks and toxicity

Awaiting sourceToxicity, overdose signs and dependence risk from harm reduction sites and journals.

Testing

Awaiting sourceReagent reactions and test kit guidance from a harm reduction testing service.

Effects

Awaiting sourceSubjective and physical effects from PsychonautWiki or TripSit.

Overview

A benzodiazepine derivative that is a prodrug for desmethyldiazepam. TS

Oxazolam is a drug that is a benzodiazepine derivative. It has anxiolytic, anticonvulsant, sedative, and skeletal muscle relaxant properties. It is a prodrug for desmethyldiazepam.[1] WP

History

Awaiting sourceHistory and culture from Wikipedia or PsychonautWiki, with their citations.

Legal status

Awaiting sourceLegal status by country from Wikipedia or PsychonautWiki.

Pharmacology

Awaiting sourcePharmacology from Wikipedia and the journal papers it cites.

Chemistry

Formula: C18H17ClN2O2 PC
CAS number: 24143-17-7 PC
Molar mass (g/mol): 328.8 PC
IUPAC name (computed by PubChem): 10-chloro-2-methyl-11b-phenyl-2,3,5,7-tetrahydro-[1,3]oxazolo[3,2-d][1,4]benzodiazepin-6-one PC
SMILES: CC1CN2CC(=O)NC3=C(C2(O1)C4=CC=CC=C4)C=C(C=C3)Cl PC
InChIKey: VCCZBYPHZRWKFY-UHFFFAOYSA-N PC
PubChem CID: 4617

User reports

Erowid erowid.org

Listings

Awaiting sourceExperience Vault listing and report categories.

Bluelight bluelight.org

Listings

Awaiting sourceTrip report threads and this substance's discussion forum.

Reddit reddit.com

Listings

Awaiting sourceTrip report posts and the relevant subreddits.

Pop culture

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References

Journal / agency Ochs HR, Greenblatt DJ, Verburg-Ochs B, Locniskar A. Comparative single-dose kinetics of oxazolam, prazepam, and clorazepate: three precursors of desmethyldiazepam. J Clin Pharmacol. October 1984. doi:10.1002/j.1552-4604.1984.tb01817.x · PMID 6150943

Text and values on this page are quoted from Wikipedia (CC BY-SA 4.0), TripSit factsheets, PubChem (public domain). Each value links to the exact revision it came from.