Delorazepam
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 3 corroborating sources
- 2 ROAs with full dose ladders
- duration data present
- 17 combo interactions documented
- PubChem toxicity data
- 3 corroborating sources
- 2 ROAs with full dose ladders
- duration data present
- 17 combo interactions documented
- PubChem toxicity data
Aliases: En, Dadumir, Nordiclazepam, Chlordesmethyldiazepam
Summary
Delorazepam is a benzodiazepine which, like other drugs in its class, possesses anxiolytic, skeletal muscle relaxant, hypnotic and anticonvulsant properties. It may have adverse effects such as drowsiness, and cognitive impairments such as short term memory impairment.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 0.25-0.5mg | 0.5-1.5mg | 1.5-2mg | 2-3mg+ |
| Sublingual | 0.25-0.5mg | 0.5-1.5mg | 1.5-2mg | 2-3mg+ |
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 30-90 min | 0.5-2 hrs | 2-6 hrs | 6-18 hrs | 12-27.5 hrs |
| Sublingual | 30-90 min | 30-90 min | 2-6 hrs | 6-18 hrs | 12-27 hrs |
Effect Profile
Scores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Strong anxiolysis, cognitive impairment, and euphoria with mild sedation
Add to PsychonautWiki Journal
The PsychonautWiki Journal logging app doesn't include every substance. To track Delorazepam there, start adding an ingestion, search for the name, and choose to add it as a custom substance. Paste these values:
Delorazepam Source: SubstanceSearch (substancesearch.com) Oral dose (mg): light 0.25-0.5 · common 0.5-1.5 · strong 1.5-2 · heavy 2-3+ Sublingual dose (mg): threshold 0.125 · light 0.25-0.5 · common 0.5-1.5 · strong 1.5-2 · heavy 2-3+ Oral duration: onset 0.5-1.5h · come-up 0.5-2h · peak 2-6h · offset 6-18h · total 12-27.5h · after-effects 72h Sublingual duration: onset 0.5-1.5h · come-up 0.5-1.5h · peak 2-6h · offset 6-18h · total 12-27h · after-effects 72h Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.
Tip: for quicker logging you can also add a Custom Unit in the app, e.g. common dose ~ 1 mg (Oral).
The app keeps custom substances simple, so the full dose ranges live in the description text above. Ranges are harm-reduction guidance, not a prescription.
Tolerance
Tolerance Decay
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
- Muscle relaxation
- Seizure suppression
- Physical euphoria
- Anxiolytic
- Muscle Relaxant
- Sedation
- Residual sleepiness
- Sedative
- Dystaxia
- Hypnotic
- Anxiety suppression
- Cognitive euphoria
- Memory suppression
- Amnesia
- Emotion suppression
- Thought deceleration
- Motor control loss
- Dizziness
- Delusions of sobriety
- Rebound anxiety
- Increased libido
- Appetite enhancement
- Disinhibition
- Decreased Libido
- Acuity Suppression
- Double vision
- Visual acuity suppression
- Dulled perception
- Perception of bodily heaviness
Combinations
Cross-Check Delorazepam with another substanceHelpful Links
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