DOM (2,5-Dimethoxy-4-methylamphetamine) is a psychdelic substituted amphetamine with effects similar to LSD. It has a slow come up, and an extremely long duration.


DOM first saw human use in 1967, when tablets sold under the street name 'STP' started to become popular in the Haight-Ashbury District of San Francisco. These tabs contained an excessively high dose in the range of 15 to 20mg. This, combined with the long onset of the drug, led to numerous non-fatal overdoses.


Threshold 0.5-1mg
Light 1-2.5mg
Common 2.5-5mg
Strong 5-7.5mg
Heavy 7.5mg+
LD50The dosage of a substance at which 50% of the exposed subjects does not survive. To estimate the LD50 for humans, tests are conducted on non-human subjects. 18mg/KG


Note: This is a very dose dependent substance, with higher doses yielding longer, more intense results.

First effects 1-2 hours
Coming up 1-2 hours
Peak 2-3 hours
Plateau 4-6 hours
Coming down 4-12 hours
After-effects 4-16 hours

Important Substance Information

DOM has been known to have a long comeup (up to 3 hours in some cases), as well as being one of the longer-acting psychedelic phenethylamines. For this reason, redosing is not recommended.


Legal status


DOM is Class A in the UK, making it illegal to buy, sell, or possess without a license.


DOM is Schedule I in the United States. This means it is illegal to manufacture, buy, possess, or distribute (sell, trade or give) without a DEA license.

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