I have always been quite fond of the entire benzo family but last summer a friend gave me a bag of 5mg librium caps and I fell in love. Librium is much more subtle than Valium or Xanax and I think that might be one of its biggest atributes. I can take one pill and it mellows me out but I am still quite functional.
Chlordiazepoxide
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- partial dose data
- duration data present
- 27 combo interactions documented
- PubChem toxicity data
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- partial dose data
- duration data present
- 27 combo interactions documented
- PubChem toxicity data
Aliases: Seren, Mitran, Librium, Clindex, Tropium
Summary
Chlordiazepoxide was the first benzodiazepine synthesized and is primarily prescribed for anxiety disorders and acute alcohol withdrawal. It has a long half-life and produces long-lasting active metabolites, making it useful for tapering but inappropriate for elderly patients due to accumulation risk. Abrupt discontinuation after prolonged use can cause life-threatening withdrawal including seizures.
Dose Information
| ROA | Light | Common | Heavy |
|---|---|---|---|
| Oral | 5-10mg | 10-20mg | 100mg+ |
Light
Common
Heavy
Sources
Oral
Dose ladder — Light: PsychonautWiki · Common: DrugsPRO · Heavy: PsychonautWikiBenzo Equivalence Calculator
mg
25.0
mg
Chlordiazepoxide
=
—
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 | 30-90 min | 1-4 hrs | 6-24 hrs | 6-30.5 hrs |
Effect Profile
9 reportsScores (0–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Benzodiazepine
7.6
Intense
8/10
Strong anxiolysis and euphoria with moderate cognitive impairment, mild sedation
Anxiolysis
×3
10
anxiety suppression
anxiolytic
muscle relaxation
muscle relaxant
emotion suppression
Sedation / Relaxation
×2
5
sedation
muscle relaxation
Motor / Cognitive Impairment
×1
7
motor control loss
amnesia
delusions of sobriety
Euphoria / Mood Lift
×1
10
cognitive euphoria
physical euphoria
disinhibition
Based on reports from:
Tolerance
Build-up
develops over 1–4 weeks of daily use; hypnotic tolerance faster than anxiolytic tolerance
Reset
Falls after you stop, at a rate that varies from person to person. If you've been using regularly, cut down gradually with medical help rather than stopping suddenly.
No tolerance chart. Our decay curves for these drugs were estimates, and a curve can make tolerance look longer-lasting than it is, which is the dangerous direction.
How fast tolerance to these drugs fades after a break has not been measured well enough to draw, so don't count on a dose you used to take still being safe: after time off, start with a much smaller amount and don't use alone. Mixing sedatives with each other, with alcohol or with opioids sharply raises the risk of a fatal overdose. If you've been using regularly, don't stop suddenly: withdrawal from benzodiazepines, alcohol or GHB/GBL can cause seizures or delirium, so get medical help to cut down gradually.
Sources: FRANK: benzodiazepines · Alcohol and Drug Foundation: GHB · FDA 2020: benzodiazepine boxed warning · FDA 2019: gabapentinoids and breathing · NHS: alcohol use disorder
Cross-Tolerances
Other benzodiazepines
Alcohol (ethanol)
Z-drugs (e.g., zolpidem)
Barbiturates
Effects
Aggregated from 9 single-substance Erowid experience reports; 3 Erowid reports where another drug was taken too are left out
Each bar shows the share of analyzed reports whose text mentions that effect — a mention is not always a first-hand experience (fear of an effect or something witnessed can count). Mentions saying the effect did not happen are left out; that check reads keywords, so it can miss some. The shaded band on a bar, and the small range after its number, is the 95% interval: where the share could plausibly be with other reports of the same kind. Fewer reports, wider band. Tap or hover any number for details. The second value is the Bluelight extractor's per-effect confidence; a dash means the row is Erowid-derived, which has no confidence measurement.
Too few reports for bars: these effects come from 9 single-substance Erowid reports, and a bar is drawn only from 20 reports or more. With fewer, a percentage cannot tell a common effect from a rare one. Counts are shown instead. Why 20?
Effect glossary — · full glossary
Positive Effects 3
4 of 9
–
4 of 9
–
3 of 9
–
Adverse Effects 0
Also reported in combinations. In the 3 Chlordiazepoxide reports where another drug was taken too, 1 mentions hospital, emergency services or an overdose, 0 a seizure and 0 psychosis (too few reports for percentages). In the 9 single-substance reports: 0, 1 and 1. These are not in the figures above: they cannot be put down to Chlordiazepoxide alone, and a mention is not always something that happened to the writer.
Combinations
Cross-Check Chlordiazepoxide with another substanceCommunity Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, Bluelight, and Dose.wiki. 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 8 reports 4 neutral 4 cautionary visit
Well after already going through the DT's from Alcohol withdrawal all by myself and with the help of my Ativan and Trazadone prescription....my counselor suggested I go ahead and go into detox anyway.
I received a supply of librium from a foreign pharmacy. The pills were encased in foil. Upon removing them I notice they had no marking, but I took a sample dose to make sure they were what they said they were. After consuming 75mg, 00:30+ Mild Sedation, a general relaxation.
first time I took the capsule at around 4:30 this afternoon and it left me in a rather good state. Nothing out of the ordinary, I just felt alright...no negative thoughts or that antsy feeling that I just can't seem to shake off sometimes.
I have experience using Librium, or generic Chlordiazepoxide for detox setting in inpatient treatment centers to detox off severe alcohol dependency and even somewhat of recreation. For context, I have experience using every substance in the book, minus some of the newer noids, and Research chemicals available now.
I have been taking ~0.75mg Xanax twice daily for about 2.5 years now, it helps alot with my general and social anxiety. My dodctor suggested switching to Librium as it is longer acting with less 'addiction' potential. This morning I woke up and everything felt like a normal day, mentally and otherwise.
From 19 to 23 I was quite a hard core alcoholic and weed smoker. Could never quite get away from it, I suppose I was just self medicating for depression and general anxiety.
I was expecting to feel euphoria after reading other experiences. I am tense from a general addiction to any drug but I am in a relaxed environment. I take Mirtazapine and Paxil for depression, and I smoke low-grade marijuana at all times.
Pill Identifiers
11
known pill identifiers on record — view imprints, colors, shapes, and images
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Chlordiazepoxide's nerd page
Pharmacology, chemical data, effect profiles, and more
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Helpful Links
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