Methocarbamol Limited data

Limited data

Sparse data. Doses and effects may be unreliable or untested.

1 source

duration data present

PubChem toxicity data

dose data not in PW/TripSit (unverifiable)

Aliases: Robax, Robaxin

Summary dose.wiki

Methocarbamol is a centrally-acting skeletal muscle relaxant with sedative properties used for acute musculoskeletal pain. It should be avoided in geriatric patients due to increased fall risk and is contraindicated in myasthenia gravis. The injectable form is contraindicated in renal impairment.

Dose Information DrugsPRO

ROA	Threshold
Oral	500mg

Only a threshold dose is documented for this substance — the smallest amount with a noticeable effect. There is no published light/common/strong ladder to show above it.

Sources

Oral

Dose ladder — DrugsPRO

Onset, Duration & After-effects dose.wiki

ROA	Onset	Comeup	Peak	Offset	After Effects	Total
Oral	15-30 min	30-60 min	1-2 hrs	2-4 hrs	6-8 hrs	3.75-7.5 hrs

Tolerance

Build-up develops over 1–4 weeks of regular use

Reset days to weeks depending on duration of use

Tolerance Decay

Full tolerance 3d Half tolerance 8d Baseline ~14d

Effects Erowid

Aggregated from 9 single-substance Erowid experience reports; 6 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?

Positive Effects 0

Adverse Effects 1

3 of 9 –

Also reported in combinations. In the 6 Methocarbamol 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: 1, 0 and 0. These are not in the figures above: they cannot be put down to Methocarbamol alone, and a mention is not always something that happened to the writer.

Community 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 6 neutral 2 cautionary visit

Little or No Intoxication, Relaxation, Body High, or Buzz neutral exp #47886

I was trying to figure out what the heck the pills were (before use). They where mixed in with some other pills and I thought the others were the good ones. I was driving all over town trying to find a freakin pharmacy so they could identify it for me but guess what, Im an idiot.

Finding the Dose neutral exp #106259

Ah, Methocarbamol, I consider you a cousin of guaifenesin, and you're just about as worthless, IMO. For what it's worth, I got into this mess by pulling a muscle in my back and deciding to forsake the Tizanidine (Zanaflex) this time around because one, I like them a little bit too much, and two, I wanted to spare my li...

When There's Nothing Else to Lift My Spirit neutral exp #79842

Before I mention anything I should warn that I've been taking Effexor XR 225mg for several years and I'm 6'2 tall so the results for this experience may make it different than for others trying methocarbomal.

Pretty Rubbery neutral exp #69070

So, I went into my family's medicine cabinet to look for something to trip on, and I saw an almost full (23 of 28 tablets) bottle of Robaxin, or Methocarbanol, 750mg tablets. My sister got them a few weeks back from getting into a car accident, and she never took them, so i decided I'd try them.

My Whole Body Is Numb cautionary exp #80681

[Erowid Note: The dose described in this report is very high, potentially beyond Erowid's 'heavy' range, and could pose serious health risks or result in unwanted, extreme effects.

Two Selves neutral exp #119051

On Fluoxetine daily. Took muscle relaxer around 9pm for shoulder pain. Started to become drowsy around 10pm. Fell asleep and woke up in the middle of the night. Wasnt sure where I was and was sleep walking to the bathroom. Got back in bed and had strange feeling of being two separate selves.

Feeling Nothing neutral exp #77519

I went to the doctor hoping to be prescribed either Soma or Oxycodone for a pain in my side. The doctor said I was developing a hernia, and instead, I was prescribed Methocarbamol, otherwise known as Robaxin. Well, at least soma actually works as a muscle relaxant...

The Whole Scoop cautionary exp #67090

Recreational Usage There is no high to be found in this drug. It works wonders when high dosing for tense, spasming, or knotted muscles. At dosages far exceeding the recommended dosage a disassociated stupor ensues of varying degrees. I enjoy having a beer or two with it, avoid excess booze though.

Pill Identifiers

23 known pill identifiers on record — view imprints, colors, shapes, and images

→

Methocarbamol's nerd page Pharmacology, chemical data, effect profiles, and more

→

Helpful Links

💊 Pill Identifier 📘 Experience Reports 📖 dose.wiki

Add to PsychonautWiki Journal

The PsychonautWiki Journal logging app doesn't include every substance. To track Methocarbamol there, start adding an ingestion, search for the name, and choose to add it as a custom substance. Paste these values:

Name

Methocarbamol

Unit

Description

Methocarbamol
Source: SubstanceSearch (substancesearch.com)

Oral dose (mg): threshold 500

Oral duration: onset 15-30m · come-up 0.5-1h · peak 1-2h · offset 2-4h · total 3.75-7.5h · after-effects 6-8h

Note: ranges are harm-reduction guidance, not a prescription. Start low, go slow, and test your substances.

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.

Report an issue or suggest an edit

Spotted incorrect or dangerous information, have a correction, a new study, or a useful addition for Methocarbamol? Let us know. Reports are reviewed by moderators — this is not posted publicly.

Methocarbamol Limited data Limited data Sparse data. Doses and effects may be unreliable or untested. 1 source duration data present PubChem toxicity data dose data not in PW/TripSit (unverifiable)