Pholedrine (Paredrinol, Pulsotyl, Veritol), also known as 4-hydroxy-N-methylamphetamine (4-HMA), 4-hydroxymethamphetamine, and para-hydroxymethamphetamine,[1] is a drug that stimulates the sympathetic nervous system.[2] It is administered as a topical eye drop form for the purpose of dilating the pupil and can be used to diagnose Horner's syndrome.[2]
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Routes of administration | Topical (Ocular) |
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ECHA InfoCard | 100.006.114 |
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Formula | C10H15NO |
Molar mass | 165.236 g·mol−1 |
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4-hydroxymethamphetamine is also a major metabolite of methamphetamine.