3-Hydroxyphenazepam Stats & Data
Brc1ccc2NC(=O)C(O)N=C(c3ccccc3Cl)c2c1KRJKJUWAZOWXNV-UHFFFAOYSA-NEffect Profile
CuratedStrong anxiolysis and euphoria with moderate cognitive impairment, mild sedation
Tolerance & Pharmacokinetics
drugs.wikiTolerance Decay
Benzodiazepine tolerance typically develops within days of frequent use and decays over weeks after cessation. Figures are approximate, based on class-wide patterns and user reports rather than substance‑specific kinetics.
Cross-Tolerances
Harm Reduction
drugs.wikiThis compound is a potent benzodiazepine; many users report significant effects at sub‑milligram doses, making volumetric dosing in ethanol or propylene glycol the safest practical method to avoid mismeasurement. TripSit’s benzo harm-reduction guidance specifically recommends liquid measurement for RC benzos active under 10 mg. It has a 3‑hydroxy group; by analogy to lorazepam/temazepam/oxazepam, most 3‑hydroxy benzodiazepines are cleared mainly by glucuronidation rather than CYP oxidation, so major CYP interactions may be fewer—this is a structural inference and not yet well-characterized for this exact drug. Strong additive CNS depression occurs with alcohol, opioids, GHB/GBL, barbiturates, tramadol, gabapentinoids, Z‑drugs, and sedating antihistamines; such combinations drive blackout, aspiration, and respiratory depression risks. Combining benzodiazepines with ketamine and other dissociatives increases ataxia and loss‑of‑consciousness risk; if someone becomes unresponsive, place them in the recovery position and seek help. Next‑day psychomotor and cognitive impairment can persist despite feeling ‘sober’; avoid driving or hazardous tasks until at least the following day. Amnesia and ‘delusions of sobriety’ are common across benzos and are frequently reported with 3‑hydroxyphenazepam; pre‑plan doses, avoid redosing for at least 2 hours after onset, and have a sober sitter to limit harm. Tolerance builds quickly with repeated use, and benzodiazepine withdrawal can be severe or life‑threatening; do not escalate doses to chase effects, and never stop chronic use abruptly—medical supervision is recommended for cessation. Novel/RC benzodiazepines are often found in counterfeit tablets with unpredictable potency; use only lab‑checked products where possible and treat any pressed ‘benzo’ of unknown origin as potentially over‑ or under‑dosed. User reports note easy dissolution in propylene glycol for accurate volumetric dosing. While insufflation has been reported anecdotally, non‑oral routes can increase unpredictability and harm; oral solutions offer more controllable kinetics.
References
Drugs.wiki References
- PubChem: 3-Hydroxyphenazepam (chemical identity, synonyms)
- TripSit Wiki: Drug combinations (benzodiazepines interactions with alcohol, opioids, GHB/GBL, tramadol, ketamine)
- TripSit Wiki: Benzodiazepines (general risks; RC benzos usually active under 10 mg; volumetric dosing in ethanol/PG recommended)
- IsomerDesign / PiHKAL.info: 3-Hydroxyphenazepam (structure; identifiers)
- Bluelight: 3-Hydroxyphenazepam experiences (reports; dissolution in PG; sub‑mg cautions)
- Bluelight: Novel benzodiazepine, 3-Hydroxyphenazepam (user dosing cautions; next‑day effects)
- Drugs-Forum: Phenazepam (notes that 3-hydroxyphenazepam is a phenazepam metabolite)
- Bluelight: Dangerous Drug Combos (benzodiazepines with other CNS depressants; methadone note)