DOSINA

Carisoprodol

Depressant

A skeletal muscle relaxant drug also known as Soma, carisoprodol has limited recreational value, however its main metabolite meprobamate has some moderate tranquilising properties. Sometimes found in concoctions with codeine or caffeine.

Somasoma

Dose and effect data: PsychonautWiki (CC BY-SA 4.0) and TripSit (PolyForm Noncommercial 1.0.0). Less-used substance: fewer independent sources, so treat these numbers with extra caution.

Before you dose

⚠This substance's dose is not reliably weight-scaled - the ranges shown are population figures. Sensitivity varies far more between people than body mass explains.
⚠This substance has combinations that are life-threatening. Check the Interactions tab before mixing anything.

Dose

Published population range

Threshold50 mg
Light100–325 mg
Common325–500 mg
Strong500–750 mg
Heavy / risk zone≥ 750 mg

No weight-based model for this substance — published ranges only.

Check an amount you already have

Timeline (oral)

Onset15–60 minutes
Peak120–300 minutes
Afterglow60–720 minutes

Bars show relative time in each phase, scaled to the total duration. Each phase keeps its colour in the list above.

Expected effects

  • Muscle relaxation
  • Sedation
  • Euphoria

Possible side effects

  • Sedation
  • Dependence
  • Withdrawal
  • Metabolised to a barbiturate-like compound
  • Respiratory depression when mixed

Known toxicity

  • moderate toxicity
  • potentially lethal when mixed with depressants like alcohol or opioids

Harm reduction

  • Depressants are the class where mixing kills most often: alcohol, benzodiazepines, GHB/GBL and opioids all suppress breathing when combined.
  • Never use alone. If you use alone, set up a check-in call with someone who will call emergency services if you do not answer.
  • Measure liquid doses with a syringe. Bottle caps, teaspoons and 'glugs' are how people take ten times the intended dose.
  • Sedation can be delayed. Do not re-dose before you can feel the previous dose fully.
  • Do not stop daily benzodiazepine or alcohol use abruptly - withdrawal can cause seizures and is potentially fatal. Taper with medical help.
  • Signs that someone needs emergency help: breathing slower than one breath every 4-5 seconds, blue lips, snoring that will not stop, unrousable, vomiting while unconscious.

Identify what you have

Marquisno color change (254)
Meckeno color change (221)
Mandelinno color change (139)

Reagent tests show what a substance probably is, not how pure it is or what else is in the mix. Fentanyl and nitazene test strips are the only reliable check for those, and quantitative lab testing is better than both.

Mixing

DepressantsDangerous

See interaction notes for details.

DissociativesDangerous

See interaction notes for details.

StimulantsCaution

See interaction notes for details.

Tolerance, dependence and detection

Addiction potentialextremely physically and psychologically addictive
After-effects1-3

Sources

• PsychonautWiki — Carisoprodol (CC BY-SA 4.0)
https://psychonautwiki.org/wiki/Carisoprodol

• TripSit wiki — Carisoprodol (PolyForm Noncommercial)
https://wiki.tripsit.me

Dosina is educational harm-reduction information, not medical advice. Doses are population ranges from published sources and cannot account for your tolerance, health conditions or what is actually in your substance. Possession and use may be illegal where you live.