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Tetrahydrozoline
Definition:
Poisoning from tetrahydrozoline. It is a derivative of imidazoline which is found in over-the counter-eye drop and nasal sprays. Other derivatives include naphazoline, oxymetazoline, and xylometazoline.
Alternative Names:
Murine; Visine
Poisonous Ingredient:
  • tetrahydrozoline
Where Found:
  • tetrahydrozoline
  • Tyzine Pediatric Drops
  • Tyzine
  • Collyrium Fresh Eye Drops
  • Eyesine
  • Mallazine Eye Drops
  • Murine Plus
  • Optigene 3
  • Soothe
  • Tetrasine Extra
  • Visine
  • Visine Extra
Note: This list may not be all inclusive.
Symptoms:


Home Treatment:
DO NOT INDUCE EMESIS UNLESS INSTRUCTED TO DO SO BY POISON CONTROL OR BY A PHYSICIAN.
Before Calling Emergency:
Determine the following information:
  • the patient's age, weight, and condition
  • the name of the product (ingredients and strengths if known)
  • the time it was swallowed
  • the amount swallowed
Poison Control, or a local emergency number:
They will instruct you if it is necessary to take the patient to the hospital. See Poison Control Centers for telephone numbers and addresses. Take the container with you to the emergency room.
What to expect at the emergency room:
Some or all of the following procedures may be performed:
  • induce emesis
  • administer activated charcoal
  • administer a laxative
  • use gastric lavage
  • administer artificial respiration (breathing) if necessary
  • maintain adequate respiration rate
  • treat the symptoms
Expectations (prognosis):
Survival past 24 hours is usually a good sign that recovery will follow.
Review Date: 12/6/2001
Reviewed By: Victoria Kennedy, RN, A.D.A.M. editorial.

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