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IUPAC name 2-(1-tetralinyl)-4,5-dihydro-1H-imidazole
CAS number
PubChem 5419
Molecular formula C13H16N2
Molar mass 200.27954
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Tetrahydrozoline is a derivative of imidazoline, which is found in over-the-counter eye drops and nasal sprays. Other derivatives include naphazoline, oxymetazoline, and xylometazoline. Poisoning can result from an overdose.

Tetrahydrozoline is widely believed to cause violent diarrhea if administered orally, as in a few drops of Visine in an unsuspecting person's beverage. However, this is an urban legend, and the actual results may vary from severe nausea and vomiting to seizures or a coma.[1] Diarrhea is not a side effect.

See also

  • Visine


  1. ^

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Tetrahydrozoline". A list of authors is available in Wikipedia.
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