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Structure of THC-M

Tetrahydrocannabinol Monomethylether
(Ethylated D9 THC)

Effects (Community)

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Effects (For Me)
  • Dream-Like Haze

  • Very tactile in the face

  • Headband effect

  • Minimal Body Load

  • Euphoric

  • Hard to think

  • Daydream

Average High Length


Come-up: 10-20 Minutes

Peak: 40-60 Minutes

Comedown: 90 Minutes - 2 Hours

Afterglow: 2-4 Hours


Come-up: 30-60 Minutes

Peak: 1-3 Hours

Comedown: 2-4 Hours

Afterglow: 2-6 Hours

Dosage Sizes


Threshold: 5-10mg

Low dose: 10-30mg

Avg dose: 30-60mg

Strong dose: 60mg+


Threshold: 3-5mg

Low dose: 5-15mg

Avg dose: 15-35mg

Strong dose: 35mg+

Best known for:

Being D9O's weird cousin.


THC-M has a low viscosity. It can be pushed out of a syringe at room temperature.

My Opinion

THC-M feels very similar to D9 THCo with a few main differences. While body load isn't exactly pronounced in D9O, THC-M seems to have even less. Almost all the tactile sensations are left for the face and head. In fact, THC-M is one of the most tactile in the face cannabinoids I've tried. THC-M makes me feel kind of dumb also, making it hard to think in a similar way that CBT does. Certainly not a good cannabinoid for getting any kind of work done. Just like the acetates, THC-M is crazy smooth on the throat. The flavor is slight but it tastes like the smell of an autozone mixed with the smell of a headshop.

My only gripe with THC-M is that it hits pretty quick and then tapers off. The duration is normal, but the distribution of the high feels like its very frontloaded. The best part seems to be over after 30 minutes and then you just have a so-so high for the rest of the time. 

Overall pretty fun and interesting though it may lack utility beyond blends that are for getting blasted.


Other notes:


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