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Systematic (IUPAC) name
CAS number 206-181-4
ATC code  ?
PubChem 9377
DrugBank nil
Chemical data
Formula C9H13NO 
Mol. mass 151.206
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.


Legal status
Routes  ?

p-Hydroxyamphetamine (4-hydroxyamphetamine, α-methyltyramine) is a drug that stimulates the sympathetic nervous system. When used in eye drops, it dilates the pupil. It is sold in combination with tropicamide under the brand name Paremyd®. It occurs as a metabolite of amphetamine. Once thought to be a human invention, p-hydroxyamphetamine is now known to occur as an alkaloid in plants including Acacia berlandieri.[1]


  1. ^ Ask Dr. Shulgin Online: Acacias and Natural Amphetamine
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Parahydroxyamphetamine". A list of authors is available in Wikipedia.
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