Dose:20mg Oral T+40: 30mg Oral T+50 : 30mg Oral T+55; 20mg Oral 100mg Total Venue:School 1010: Taken 2 Clobazam 10mg pills. Small,White,Branded 'Frissum' [sic] 1015: No effects, not that they were expected yet. 1020: Warmth in legs first noticed Increased appreciation of music/singing.
Clobazam
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 2 corroborating sources
- partial dose data
- duration data present
- 17 combo interactions documented
- PubChem toxicity data
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 2 corroborating sources
- partial dose data
- duration data present
- 17 combo interactions documented
- PubChem toxicity data
Aliases: Onfi, Frisium, Urbanol, Urbanyl, Urbadan
Summary
Clobazam is a unique 1,5-benzodiazepine with preferential α2 subunit binding, resulting in potentially less sedation than classic 1,4-benzodiazepines. FDA-approved for Lennox-Gastaut syndrome; used off-label for anxiety and other seizure types in some countries. The long-acting active metabolite N-desmethylclobazam significantly contributes to effects and extends duration.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 5-10mg | 10-15mg | - | 15-30mg+ |
Light
Common
Strong
Heavy
Benzo Equivalence Calculator
mg
20.0
mg
Clobazam
=
—
mg
Diazepam
| Substance | Equivalent Dose | Potency |
|---|
⚠ These are approximate equivalences for educational and cross-tapering reference. Individual response, tolerance, and half-life differences mean actual equivalence varies. Always consult a healthcare provider for tapering guidance.
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 30-60 min | 60-90 min | 1-4 hrs | 6-12 hrs | 6-12 hrs |
Effect Profile
1 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Benzodiazepine
6.7
Strong+
7/10
Strong anxiolysis and cognitive impairment with moderate euphoria, mild sedation
Anxiolysis
×3
10
anxiolysis
anxiety suppression
anxiolytic
muscle relaxation
muscle relaxant
emotion suppression
Sedation / Relaxation
×2
5
sedation
muscle relaxation
Motor / Cognitive Impairment
×1
9
motor control loss
memory suppression
amnesia
delusions of sobriety
Euphoria / Mood Lift
×1
6
physical euphoria
disinhibition
Based on reports from:
Add to PsychonautWiki Journal
The PsychonautWiki Journal logging app doesn't include every substance. To track Clobazam there, start adding an ingestion, search for the name, and choose to add it as a custom substance. Paste these values:
Name
Clobazam
Unit
mg
Description
Clobazam Source: SubstanceSearch (substancesearch.com) Oral dose (mg): light 5-10 · common 10-15 · heavy 15-30+ Oral duration: onset 0.5-1h · come-up 1-1.5h · peak 1-4h · offset 6-12h · total 6-12h · after-effects 24h 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 ~ 12.5 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
Build-up
develops over 1–4 weeks of daily use; hypnotic tolerance faster than anxiolytic tolerance
Reset
weeks to months depending on half-life and duration of use; taper recommended
Tolerance Decay
Full tolerance
14d
Half tolerance
168d
Baseline
~336d
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.
Tolerance to hypnotic/anxiolytic effects tends to develop over weeks of daily use and decays slowly over weeks after cessation; seizure‑protective effects may persist variably. Data are drawn from class‑level evidence and clinical experience; individual variability is high.
Cross-Tolerances
Effects
Positive
- Anxiolysis
- Muscle relaxation
- Anticonvulsant effects
- Anxiolytic
- Muscle Relaxant
- Physical euphoria
Negative
- Respiratory depression
- Sedation
- Sedative
- Dystaxia
Positive
- Anxiety suppression
Negative
- Cognitive suppression
- Memory suppression
- Motor control loss
- Compulsive redosing
- Thought deceleration
- Emotion suppression
- Amnesia
- Dizziness
- Delusions of sobriety
Negative
- Disinhibition
- Decreased Libido
- Acuity Suppression
- Visual acuity suppression
- Appetite suppression
- Dulled perception
- Appetite fluctuation
- Hallucinations
- Perception of bodily heaviness
Combinations
Cross-Check Clobazam with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance. Tags summarise each author's own verdict — how reports are classified.
Erowid 1 report 1 neutral visit
Bluelight 1 thread 1 neutral visit
Clobazam represents the safest benzodiazepine by a HUGE margin. The reason being that 100% occupancy of the GABA receptor site it binds to does not lead to one passing out, forgetting what one is doing or doing crazy/stupid/illegal stuff - just just LIE DOWN.
Pill Identifiers
20
known pill identifiers on record — view imprints, colors, shapes, and images
→
Clobazam's nerd page
Pharmacology, chemical data, effect profiles, and more
→
Helpful Links
Report an issue or suggest an edit
Spotted incorrect or dangerous information, have a correction, a new study, or a useful addition for Clobazam? Let us know. Reports are reviewed by moderators — this is not posted publicly.