I’ll try to keep this as short as possible but I just needed to share the most beautiful trip I’ve ever had. **Trip intention: To feel romantic love.** I know this sounds weird or even downright pathetic. But I just wanted to know what it felt like. Just once.
Ketamine
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 7 corroborating sources
- 6 ROAs with full dose ladders
- duration data present
- 26 combo interactions documented
- PubChem toxicity data
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 7 corroborating sources
- 6 ROAs with full dose ladders
- duration data present
- 26 combo interactions documented
- PubChem toxicity data
Aliases: K, Ket, Jet, Kitty, 2-cxm, kittens
Summary
Ketamine is an NMDA receptor antagonist with a potent anesthetic effect. It was developed in 1963 as a replacement for phencyclidine (PCP) by Calvin Stevens at Parke Davis Laboratories. It started being used for veterinary purposes in Belgium and in 1964 was proven that compared to PCP, it produced minor hallucinogenic effects and shorter psychotomimetic effects.
Perspectives
“K is immensely bleak and the K Hole is just one great void. It just feels cold, grey, dull and boring.”
“Tread carefully.”
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral BA 17% | 50-100mg | 100-300mg | 300-450mg | 450mg+ |
| Sublingual BA 24-30% | 50-100mg | 100-300mg | 300-450mg | 450mg+ |
| Insufflated BA 45% | 10-30mg | 30-75mg | 75-150mg | 150mg+ |
| Intramuscular BA 93% | 10-25mg | 25-50mg | 50-100mg | 100mg+ |
| Intravenous BA ~100% | 5-15mg | 15-40mg | 40-75mg | 75mg+ |
| Rectal BA 25-30% | 50-100mg | 100-250mg | 250-400mg | 400mg+ |
Light
Common
Strong
Heavy
Ketamine Dosing Calculator
Ketamine dosing is weight-dependent — effects vary significantly based on body mass and route of administration. Select your ROA below to see adjusted doses based on its bioavailability.
via
Insufflated is the most common recreational route. BA from NCBI NBK470357.
⚠️ Doses are adjusted for the selected route based on its bioavailability (NCBI). There is no single "K-Hole dose" — individual sensitivity varies greatly. Always start low and wait.
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 10-30 min | 4-19 min | 45-90 min | 30-60 min | 1-2 hrs |
| Sublingual | 4-10 min | 4-19 min | 30 min | 30-60 min | 1-2 hrs |
| Insufflated | 4-15 min | 4-19 min | 30-60 min | 30-60 min | 1-2 hrs |
| Intramuscular | 1-4 min | 4-15 min | 15-45 min | 30-60 min | 1-2 hrs |
| Intravenous | - | 1-3 min | 3-4 min | 30-60 min | 1-2 hrs |
| Rectal | 10-19 min | 10-19 min | 30-40 min | 30-60 min | 1-2 hrs |
Effect Profile
920 reportsScores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Validated against 712 Erowid trip reports
- Weighted by importance: core (×3), major (×2), minor (×1)
Dissociative
6.9
Strong+
7/10
Strong dissociative depth with moderate insight and motor impairment, low mania
Dissociative Depth
×3
8
depersonalization
derealization
consciousness disconnection
physical disconnection
tactile disconnection
cognitive disconnection
+9 more
“K is immensely bleak and the K Hole is just one great void.”
“I've never gone into a k-hole though so all i can comment is some people have told me they loved it, others they hated it.”
Mania / Compulsion
×1
3
compulsive redosing
disinhibition
“Still quite dissociative but with a very "on the nose" euphoria.”
“It's perhaps a bit better to take MDMA to add stimulation and socialization but MDA makes it a bit more introspective, in addition to adding it's own flavor to the visuals.”
Insight / Novel Thought
×2
7
conceptual thinking
analysis enhancement
subconscious communication
perspective alterations
unity and interconnectedness
personal bias suppression
+2 more
Motor / Sensory Impairment
×1
7
motor control loss
physical disconnection
tactile disconnection
tactile suppression
spatial disorientation
visual disconnection
+1 more
“I feel like I’ve snorted ice, that this icy numbness is radiating from my sinuses outwards.”
“You can maintain motor skills on this combo.”
User Experience
dissociative depth
“K is immensely bleak and the K Hole is just one great void.”
Tolerance
Build-up
develops noticeably with repeated use; chronic use can lead to significant tolerance and bladder damage
Reset
2–4 weeks for noticeable reduction
Tolerance Decay
Full tolerance
1d
Half tolerance
21d
Baseline
~28d
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.
Cross-Tolerances
Dissociatives
Dextromethorphan
80%
PCP
80%
Methoxetamine
80%
3-MeO-PCP
80%
3-HO-PCP
80%
3-MeO-PCE
80%
3-HO-PCE
80%
O-PCE
80%
Effects
Aggregated from 712 Erowid and 208 Bluelight experience reports
Positive Effects 58
Visual Distortions
44.1%
75%
Music Enhancement
39.2%
83%
Euphoria
32.7%
84%
Color Enhancement
32.3%
82%
Geometric Imagery
32.0%
86%
Awe
30.0%
82%
Empathy
29.6%
80%
Stimulation
27.9%
83%
Focus Enhancement
25.8%
70%
Out-Of-Body Experience
24.0%
88%
Tactile Enhancement
23.4%
80%
Insight
22.0%
86%
Closed-Eye Visuals
20.2%
88%
Mystical Quality
18.0%
85%
Thought Acceleration
18.0%
79%
Introspection
16.2%
80%
Environmental Transfiguration
16.0%
87%
Sociability Enhancement
14.0%
84%
Ego Dissolution
13.7%
89%
Lightness
12.0%
81%
Adverse Effects 55
Anxiety
45.7%
83%
Body Load
34.0%
81%
Confusion
31.1%
87%
Fear
28.0%
85%
Nausea
19.6%
83%
Sedation
14.5%
80%
Ataxia
14.0%
84%
Memory Suppression
12.2%
80%
Thought Disorganization
12.0%
81%
Delusion
10.0%
80%
Body Distortion
10.0%
83%
Panic
10.0%
83%
Paranoia
8.0%
78%
Paranoid Ideation
6.0%
68%
Communication Suppression
6.0%
80%
Focus Suppression
6.0%
72%
Pain Enhancement
6.0%
90%
Appetite Suppression
6.0%
75%
Amnesia
6.0%
85%
Dysphoria
6.0%
85%
Combinations
Cross-Check Ketamine with another substanceTrip Reports
Community Trip Reports
Anecdotal first-person accounts from Reddit, Erowid, and Bluelight. Click a source to expand. Reports are harm-reduction context, not medical guidance.
Reddit 8 reports 2 positive 4 neutral 2 cautionary visit
My friend and I have done ketamine together three times now. The first time on acid. The second time sober. And this last time on mushrooms. Doing ketamine sober is a mild experience. Maybe we didn’t take enough though. It was pleasant but not anything to write home about.
Last night I administered 60mg approx of ketamine, IM. Within 5-10 minutes, the effects started to come on strong. I wanted to dance for a bit but the effects were so strong that my legs were numbing out and I lost control of my limbs. so I had to stop.
Used to only consume 1g over the course of a weekend for a festival. But about 3 years ago I started using it at home on the couch and get deeper into the k hole experience. Usage would go up to a gram in a night but still took breaks. Eventually I got up to 3.5g in a weekend.
Yesterday, I had the impulse to do a khole dose. But apperently I had really dark coloured rooms that didn't show detailed scenerys. Always dark coloured and blurr. Now, I quit kratom 9 days ago from 30gpd to 0 in two days.
tripped so hard that my whole conciouness deconstructed it felt like I was falling through different scenes in a other realm but with a sinister presence to it , it felt like I was being dragged through and eventually I felt the end goal would be to meet the maker himself , it sm...
I have experience with lsd,shrooms, excstasy. And almost every other drug except heroin & fentanyl and I took ketamine for the first time 3 days ago and I’ve been doing it daily since. Ketamine really reflects your fears & good sides.
I got a oz from a new source. Tried it last weekend at a show and it felt fine at first then all the sudden got hit with this overwhelming feeling of anxiety and raciness and it felt like my whole body was like shutting down, literally had my buddy run to the car and grab narcan...
Erowid 8 reports 3 positive 3 neutral 2 cautionary visit
Ketamine is a substance that for better or worse has had a place of some prominence in my life for some time now - it hasnt been the source of my most profound drug experiences, its not the most reliably enjoyable substance, its not the most social drug, its not even the safest drug - something which is becoming mo...
First I'd like to share the more mundane details of my relationship with this substance - the basic logistics of my ketamine usage and its effect on my life. I've been a habitual user of K for over a year and a half, imbibing on an almost daily basis during this time.
I am not the best for describing stuff so bear with me. Ketamine is my favourite substance; it is unpredictable, surreal and somewhat life changing with each experience different to its previous one.
The background to the trip seems undeniably essential to the content of the experience. That said, some of the details of my life are deeply painful, shame-drenched and terrifying to talk about in earnest and despite the anonymity and relative distance afforded by saying these things in a trip report, some of the parti...
Here is a trip report of my first K-hole experience. I had tried quite a few times to reach this level before, but always came up a little short of getting there, though many of those experiences were somewhat profound too. They pale in comparison to this one.
I would say I'm tall, I would not say I'm someone who frequently does drugs, or any type of strong chemical, plants and anything else in that direction for that matter. I'm just an occasional bud burner along with a few experiences with MDMA, LSD, xanax, morphine and a very regretful one with 25i.
A very good friend of mine happens to be heavily addicted to, of all things, Ketamine. We live in a beautiful, up-and-coming, Southeast Asian country where many ultra-high-purity chemicals are produced.
[Erowid Note: Driving while intoxicated, tripping, or extremely sleep deprived is dangerous and irresponsible because it endangers other people. Don't do it! ] My experience with Ketamine: So I had ordered two gram of ketamine from overseas to my friend and it arrived stealthily packaged in a gameboy cartridge.
Bluelight 7 threads 2 positive 5 neutral visit
Ketamine is a substance that for better or worse has had a place of some prominence in my life for some time now - it hasn’t been the source of my most profound drug experiences, it’s not the most reliably enjoyable substance, it’s not the most social drug, it’s not even the safest drug - something which is becoming mo...
The reason I love IV K so much is because it's so outstandingly surreal, it feels like an ENTIRELY different drug than when done orally, intranasally, rectally, or IMed. Hell, I personally never liked ketamine until I started shooting it. And once I did--it was the most incredible rush... I was in love.
well here is the sequel i promised to my 'Ketamine in Mexico' report found both here and on the web at http://ketamex.tripod.com ...enjoy... Hmmmmm....hello all....well Mexico was fun and all, but I felt it was time to explore brave new worlds or whatever.
Hey all, This isn't so much a report of any specific trip, more an account of a long period of exposure to ketamine. I had my first line of ketamine about four years ago when I was 16, I still remember it vividly now. It was a dose so small that I would wipe it off the table without any regret nowadays.
This is an older trip report of mine; the experience happened in the spring of 2011 which is also when I wrote the report. It was written in dutch though and I figured it is probably interesting enough to translate to english for international availability.
This is by a certain little Asain American girl most of us know/love/hate. It is not about harm reduction nor do I condone or approve of here actions. -spun Continuation of Homeless in Japan with a FUCKLOAD of Drugs. Day 1. 5-MeO-DPT. By Kandy K.
i've tried ketamine a few times before, but most of the times it was just one of a multiplicity of powders to go up my nose, and thus i was never able to isolate the effects of the ketamine amongst the effects of the others.
Bluelight Reference Guide
Dissociatives Big & Dandy Ketamine Thread 4: I was filled with the Holey Spirit
The Big & Dandy Ketamine thread iupac = (RS)-2-(2-Chlorophenyl)-2-(methylamino)cyclohexanone External Information Links: Wikipedia Ketamine page Erowid Ketamine vault Erowid Ketamine FAQ "The Ketamine Konundrum" FAQ: The Beginners Guide to Ketamine Subthreads: First Time Dosage and Methods of Administration Oral Admini...
Read full thread on Bluelight →
Ketamine's nerd page
Pharmacology, chemical data, effect profiles, and more
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