Previous consumed medications/chemicals: MDMA: 2, 4, 8 days ago. Dextroamphetamine: 2 days ago. Phenergan: 75MG 1 day ago. 20 mg of cyclobenzaprine oral w/ full glass of water at 12:05am saturday (Note I'm writing this while under intoxication, to increase effect and see whether or not verbal(written) structures chan...
Cyclobenzaprine
Encyclopedic
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- PubChem toxicity data
Encyclopedic
Typical encyclopedia coverage. Cross-reference for important decisions.
- 3 corroborating sources
- 1 ROA with full dose ladder
- duration data present
- PubChem toxicity data
Aliases: amrix, apo-cyclobenzaprin, cycoflex, fexmid, flexeril, mk-130, novo-cycloprine
Summary
Muscle relaxant and CNS depressant used to relieve skeletal muscle spasms and associated pain in acute musculoskeletal conditions. Sometimes prescribed off-label for treatment of fibromyalgia or as a sleep aid. Has little recreational value alone, but may potentiate some opioids.
Dose Information
| ROA | Light | Common | Strong | Heavy |
|---|---|---|---|---|
| Oral | 2-5mg | 5-10mg | 10-15mg | 15mg+ |
Light
Common
Strong
Heavy
Onset, Duration & After-effects
| ROA | Onset | Peak | Total |
|---|---|---|---|
| Oral | 15-45 min | 6-12 hrs | 6-12 hrs |
Tolerance
Build-up
sedative effects diminish over 1–2 weeks of daily use
Reset
a few days
Tolerance Decay
Full tolerance
14d
Half tolerance
7d
Baseline
~14d
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 daytime sedation can develop over several days of repeated use. Given sparse formal data, these values are approximate and based on class inferences and user reports rather than controlled studies.
Cross-Tolerances
Effects
Aggregated from 61 Erowid experience reports
Positive Effects 9
Sedation
50.8%
70%
Stimulation
24.6%
70%
Music Enhancement
23.0%
70%
Euphoria
19.7%
70%
Anxiety Suppression
11.5%
70%
Body High
9.8%
70%
Tactile Enhancement
9.8%
70%
Focus Enhancement
6.6%
70%
Empathy
4.9%
70%
Adverse Effects 4
Confusion
9.8%
70%
Nausea
6.6%
70%
Headache
6.6%
70%
Pupil Dilation
4.9%
70%
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.
Erowid 8 reports 6 neutral 2 cautionary visit
This will be my first experience with cyclobenzaprine. I acquired a few lately and thought I'd give them a shot. I'm an opiate lover at heart, and I've heard they are comparable to low-potency opiates.
After noticing a lack of cyclobenzaprine (Flexeril) information, I figured I'd like to submit what I've learned recently. I've only done it a handful of times (say, 10), but I could share my latest trip report. Flexeril comes in 10mg tabs.
NOTE: This report was written as I was going through the experience in order to illustrate what goes on in the mind of a user. As usual I got sort of bored. Ive been awake for days, only taking a few naps here and there for about an hour each time.
I complained to the doctor of severe back pain and tenseness that prevented me from getting adequate sleep, just to see what I might get. I ended up with a prescription for cyclobenzaprine. At the time that I ingested the cyclobenzaprine, I did indeed have a fair bit of muscular pain in my lower and mid-back.
After hearing enthusiastic reports from numerous people about the skeletal muscle relaxant cyclobenzaprine, (or Cyclone, as it has been dubbed by those familiar with it within my circle of friends) I decided that it might be worthwhile to try.
I could not find any specific stories online regarding this kind of experience. A few days ago I took a very small dose of cyclobenzaprine and had a major panic attack and derealization episode that lasted about four days.
I've done Flexiril a couple times, but this will be a quick description of my first time. Ok, first off, I consider this the best prescription drug I've ever consumed, besides Dilaudid (hydromorphone, basically the strongest pain killer you can get (except for the insane stuff you absolutely cannot get a prescription f...
Bluelight 4 threads 4 neutral visit
Yesterday afternoon, I felt bored. I had a ton Adderall that I haven't used so I decided to have two 20mg pills at 2:30 PM to make work more bearable. Now fast foward to 10:30 PM, when I get home from work. I still feel really wired from the Adderall.
I've read over and over that Flexeril has no recreational use. There were a few reports on Erowid that were positive, and I had a few that had been laying around for months. Being someone who has to try everything once, I crushed 2 of them up, added a little water, and swallowed it down. Total dose was 20 mg.
I have a rather large scipt for Flexril due to a back problem I'd been having for about year. I went to physical therapy and the problem is pretty much gone now and still have a quite a few flex left. I wrote this report several months ago and submitted it to erowid but it was never published.
My experience with drugs goes back to 8th grade when I started smoking cannabis. Since then, I’ve experimented with various opiates, amphetamines, alcohol, Diphenhydramine, DXM, Psilocybin mushrooms and Salvia.
Pill Identifiers
18
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