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Piperonyl butoxide with pyrethrins

Alternative names

Piperonyl butoxide with pyrethrins poisoning is an overdose (by swallowing or skin exposure) of preparations containing piperonyl butoxide with pyrethrins.

Poisonous Ingredient

  • Piperonyl butoxide
  • Pyrethrins
Note: This list may not be all inclusive.

Where Found

  • Control-L (also contains petroleum distillates)
  • End Lice
  • Pyrinyl II
  • Triple X Kit(also contains petroleum distillates)
  • Tisit
  • Pyrinyl (also contains kerosene)
  • Barc (also contains petroleum distillates)
  • Blue (also contains petroleum distillates)
  • Tisit Blue (also contains petroleum distillates)
  • A-200
  • Pronto
  • Lice-Enz Foam Kit
  • Pyrinyl Plus
  • R and C spray
  • Rid (also contains petroleum distillates and benzyl alcohol)
  • Pyrinex Pediculicide (also contains petroleum distillates)
Note: This list may not be all inclusive.


  • Skin
    • Rash ( allergic reaction )
  • Respiratory
    • Wheezing
    • Difficulty breathing
  • Eyes, ears, nose, and throat
    • Eye irritation if exposed
    • Sneezing
  • Heart and vessels
    • Chest pain
  • Nervous system
    • Convulsions
    • Coma

Home Treatment

Contact Poison Control Center for treatment information.

Before Calling Emergency

Determine the following information:
  • Patient's age, weight, and condition
  • Name of the product (ingredients and strengths if known)
  • When it was swallowed
  • The amount swallowed

Poison Control, or a local emergency number

Call Poison Control or your 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:
  • Monitoring of vital signs
  • Treatment of symptoms
  • Cleaning of exposed skin
  • Irrigation (washing) and examination of eyes as necessary
  • Treatment of allergic reactions as necessary

Expectations (prognosis)

Most adverse symptoms are seen in patients who are allergic to pyrethrins.

Piperonyl butoxide is of low toxicity.

Update Date: 2/9/2004

Cherlin Johnson, M.D., Department of Emergency Medicine, University of Southern California, Los Angeles, CA. Review provided by VeriMed Healthcare Network.

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Last updated: Tue, 06 Jan 2009 00:20:03 GMT