Phenibut saved my life. I get that it's hard to accept that this subtle yet powerful substance can do such a thing but it did. Phenibut cured my panic disorder and I no longer have panic attacks. It makes live in the here and now only.
Phenibut
Well-documented
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 6 corroborating sources
- 2 ROAs with full dose ladders
- duration data present
- 15 combo interactions documented
- PubChem toxicity data
- classified Research-chemical
Well-documented
Multiple authoritative sources agree on dosing and effects.
- 6 corroborating sources
- 2 ROAs with full dose ladders
- duration data present
- 15 combo interactions documented
- PubChem toxicity data
- classified Research-chemical
Aliases: Phgaba, Noofen, Bifren, Fenibut, Anvifen
Summary
Phenibut is a GABA-B receptor agonist and gabapentinoid with anxiolytic and sedative effects. It has a delayed onset of 1.5-3 hours which can lead to accidental overdose from redosing. Combining with other depressants can cause severe CNS depression, unconsciousness, and potentially fatal respiratory depression.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral BA ~65% | 0.5-1g | 1-2g | 2-3.5g | 3.5g+ |
| Rectal | 0.5-1g | 1-2g | 2-3.5g | 3.5g+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Comeup | Peak | Offset | Total |
|---|---|---|---|---|---|
| Oral | 1.5-3 hrs | 1.5-3 hrs | 3-4 hrs | 4-6 hrs | 4-10 hrs |
| Rectal | 30-60 min | - | 1-3 hrs | 2-3 hrs | 4-10 hrs |
Tolerance
Build-up
develops rapidly within 2โ5 days of daily use; high dependence potential
Reset
7โ14 days; withdrawal can be severe
Tolerance Decay
Full tolerance
1h
Half tolerance
10d
Baseline
~14d
Acute tolerance: develops within a single session โ the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
Aggregated from 120 Erowid and 25 Bluelight experience reports
Positive Effects 33
Anxiety Suppression
56.5%
92%
Stimulation
46.2%
84%
Euphoria
40.0%
87%
Sedation
39.3%
84%
Sociability Enhancement
32.0%
81%
Music Enhancement
30.3%
90%
Focus Enhancement
26.9%
82%
Contentment
24.0%
85%
Hypersomnia
24.0%
81%
Peace
24.0%
85%
Empathy
23.4%
80%
Joy
20.0%
81%
Tactile Enhancement
18.3%
70%
Thought Acceleration
12.0%
87%
Body High
10.4%
75%
Closed-Eye Visuals
9.0%
95%
Relaxation
8.0%
90%
Geometric Imagery
8.0%
90%
Libido Enhancement
8.0%
75%
Bliss
8.0%
88%
Adverse Effects 55
Nausea
26.9%
86%
Dizziness
24.0%
85%
Confusion
19.3%
88%
Headache
18.6%
88%
Visual Distortions
17.3%
75%
Body Load
16.0%
84%
Focus Suppression
16.0%
79%
Insomnia
16.0%
81%
Auditory Effects
15.2%
90%
Thought Disorganization
12.0%
75%
Vomiting
12.0%
92%
Memory Suppression
11.1%
78%
Sweating
8.3%
85%
Heaviness
8.0%
80%
Disinhibition
8.0%
80%
Panic
8.0%
95%
Ataxia
8.0%
85%
Metallic Taste
8.0%
95%
Increased Heart Rate
7.5%
70%
Muscle Tension
6.7%
70%
Combinations
Cross-Check Phenibut 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.
Reddit 8 reports 2 positive 3 neutral 3 cautionary visit
I quit phenibut over a year ago. Completely. I tapered and got off and got busy with life, lots of changes.. yada yada .. Well I've been going through some other shit and decided to get some cuz my anxiety has been bad and quite honestly I just needed a little bit of magic in my...
I'd been telling my friend for a while now that he should try phenibut with me the next time I do it. Well, it had been two months and it was time for my dose, and he was ready to go too. He really enjoyed it, until he sharted all over himself in the soft drink isle at Mejier.
So I wake up this morning around 9 after receiving my lift mode package yesterday and I decide to take around a gram for my first time today before work.
I am 18M from Russia, where you can buy phenibut for like 4$ per 20 250mg tabs. By law it can be sold to you only if you have prescription, but, in fact, nobody cares and I even used to buy it when I was around 12 years old in local pharmacy.
Hi all, this is actually my first post on here. I figured that I would contribute to the Reddit community rather than just read other people's threads for advice for once.
I've noticed that this sub has a tendency to completely overstate Phenibut's effects. It can be very effective indeed for anxiety and it's a good social drug but it is NOT a cure for everything. It won't make you feel "like you're on MDMA" when taken recreationally.
Hey guys, ive been using phenibut for close to 3 years ranging from once every 2 weeks to 3 times a week. I usually do it once biweekly now. Ive taken up to 5g and even occasionally mix it with alcohol (not safe).
Erowid 8 reports 3 positive 3 neutral 2 cautionary visit
Phenibut: A Beautiful Nightmare So I was bored, I wanted to experience an easier version of drinking. I researched alot into it, and I knew it was addictive, But I didnt believe the website advice.
Before I took the dose I was in a somewhat anxious mindset as it was my first time and buying stuff off the internet always makes me a little nervous about what is actually in it.
Experience Neutral I read a bit about Phenibut's anxiolytic and possible cognitive enhancing effects, so I bought 100 grams in powder form and had it delivered to my house. This is the log of my first two experiences as I experimented with doses. 11:56 am. ~500 mg mixed with orange juice, could barely taste it.
Phenibut: A Comprehensive Long-Term Synopsis and Usage Guide by Xorkoth I first encountered phenibut in 2006. I was a member of a bodybuilding forum, not that I did any bodybuilding whatsoever (indeed, at the time I had virtually no upper body strength and had never been to a gym).
A Long Extensive Look into My Journey on Peanut Butter I donยt see too many in depth reports about the extensive use of phenibut. Even online, there are only reports about the dangers of extended use.
Introduction: This was my 5th experience with Phenibut. Over the course of me first acquiring it, I experimented with the following does: 0.25 g, 0.5 g, 1 g, 1.5 g, and then the experience being discussed today. 0.25 to 0.5 mg were therapeutic doses which helped with sleep.
[Erowid Note: After writing this experience in 2011, the author later went through a period of over use and has added a follow up warning to the end of this report. See followup below.] My prior drug experiences have included extensive psychedelic use (mushrooms, lsd, lsa, many 2cยs, dmt, 5-meo-dmt, etc.
I read about Phenibut in a thread about Kratom (which I also use). I was interested and did some research. At first, the substance sounded pretty scary, with many users describing overdoses, addiction, and adverse effects.
Bluelight 8 threads 6 neutral 2 cautionary visit
Phenibut: A Comprehensive Long-Term Synopsis and Usage Guide by Xorkoth โ I first encountered phenibut in 2006. I was a member of a bodybuilding forum, not that I did any bodybuilding whatsoever (indeed, at the time I had virtually no upper body strength and had never been to a gym).
I recently have been into the exploration of Nootropics and Smart Drugs to improve intelligence/mood. I have found Phenibut to be very interesting, and can possibly suppress nicotine cravings and help with opiate withdrawal.
I just dug up this old report when looking into phenibut for a friend: After a day of working on job applications, I had taken staggering amounts of caffeine plus a bit of pseudoephedrine that was wearing off. I was bouncing up and down at 8:30pm, but could no longer focus on my work.
This was my second time taking phenibut but the largest amount I had taken. Took 4g throughout 8 hours or so. First dose was .8g taken on an empty stomach, waited about an hour and took 5-6g of Bali plain leaf kratom. Let me say this legal and drug test free combo is very nice.
Recently recieved a package with one gram of mad hatter herbal incense it and was pretty excited to try it since I have regular drug testing due to legal issues... Note I had ingested 2.7g of Phenibut in capsules 4-5 hours prior, using an accurate milligram scale.
I'm new to this forum but read threads all the time since my searches on Google invariably lead me here. So anyways, brief history, I'm on subutex now, all legal, as I'm a recovering opiate addict. I use the term loosely because though I quit the "hard drugs", I still use legals, ethnobotanicals etc..
A couple of weeks ago I ordered some phenibut intrigued by the concept of a legal, safer alternative to benzos. Really benzos do nothing for my anxiety I just like having them around as peace of mind in case I get a panic attack.
So I hope you guys can tell me. I have had extensive drug use and when I took phenibut the very first time I must say I was expecting a euphoric high similar to what I feel when taking alrpazolam (at least 3 bars ). Or maybe even warm like an opiate high. Or perhaps drunk like everyone compares it to alcohol.
Bluelight Reference Guide
Gabapentinoids Phenibut Megathread
AKA:Fenibut, Noofen, Phenybut, Phenyl-GABA What it is: A derivative of GABA, marketed as a dietary supplement int the U.S, and as a neuropsychotropic drug in Russia for treating PTSD, anxiety, depression, insomnia etc.
Read full thread on Bluelight โ
Phenibut's nerd page
Pharmacology, chemical data, effect profiles, and more
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