Tetryzoline

Tetryzoline
Names
IUPAC name
(RS)-2-(1,2,3,4-tetrahydronaphthalen-1-yl)-4,5-dihydro-1H-imidazole
Identifiers
84-22-0 N
3D model (Jmol) Interactive image
ChEBI CHEBI:28674 YesY
ChEMBL ChEMBL1266 YesY
ChemSpider 5226 YesY
ECHA InfoCard 100.001.384
KEGG D08578 YesY
PubChem 5419
UNII S9U025Y077 YesY
Properties
C13H16N2
Molar mass 200.28 g/mol
Pharmacology
R01AA06 (WHO) S01GA02 (WHO)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
Infobox references

Tetryzoline (INN;[1] also known as tetrahydrozoline), a derivative of imidazoline, is found in over-the-counter eye drops and nasal sprays. Other derivatives include naphazoline, oxymetazoline, and xylometazoline.

Tetrahydrozoline is an alpha agonist and its main mechanism of action is the constriction of conjunctival blood vessels.[2] This serves to relieve the redness of the eye caused by minor ocular irritants.

An urban legend suggests that tetrahydrozoline can cause violent diarrhea if administered orally, such as by putting a few drops of Visine in an unsuspecting person's beverage. However, the actual results of the prank may be worse, varying from severe nausea and vomiting to seizures or a coma. Diarrhea is not a side effect.[3]

References

  1. "International Non-Proprietary Names for Pharmaceutical Preparations. Recommended International Non-Proprietary Names: List 3" (PDF). World Health Organization. p. 474. Retrieved 30 August 2016.
  2. Dahlström M, Lindgren F, Berntsson K, et al. (July 2005). "Evidence for different pharmacological targets for imidazoline compounds inhibiting settlement of the barnacle Balanus improvisus". J. Exp. Zoolog. Part a Comp. Exp. Biol. 303 (7): 551–62. doi:10.1002/jez.a.163. PMID 15945078.
  3. "Visine Prank: Mickey Red Eyes". Snopes. 29 June 2009. Retrieved 28 July 2010.


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