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What chemicals that are in tick repellents have unknown effects on pregnancy?

ANSWER

It’s unclear how the chemicals that are often used in tick repellents can affect your pregnancy. Many of them haven’t been studied to see if they cause birth defects. The verdict is still out on:

  • Picaridin
  • Oil of lemon eucalyptus (OLE)
  • PMD (a chemical version of OLE)
  • 2-Undecanone
  • IR3535

SOURCES:

CDC: “Ticks and Lyme Disease,” “Stop Ticks,” “Natural Tick Repellents and Pesticides,” “Chapter 2, The Pre-Travel Consultation: Protection against Mosquitoes, Ticks and Other Arthropods.”

MotherToBaby/Organization of the Teratology Information Specialists: “Fact Sheet: Insect Repellents.”

Mayo Clinic: “Got a tick? Get tweezers?” “Lyme Disease.”

InfantRisk Center/Texas Tech University Health Sciences Center: “Insect Bites and Repellent Sprays for Pregnant Women.”

MedicinesinPregnancy.org/UKTIS: “Chemical Insect Repellents.”

American Pregnancy Association: “Pesticides and Pregnancy,” “Herbs and Pregnancy.”

Malaria Journal: “Plant-based insect repellents: a review of their efficacy, development and testing.”

JOGCC : “Management of Tick Bites and Lyme Disease During Pregnancy.”

Reviewed by David Zelman on April 1, 2017

SOURCES:

CDC: “Ticks and Lyme Disease,” “Stop Ticks,” “Natural Tick Repellents and Pesticides,” “Chapter 2, The Pre-Travel Consultation: Protection against Mosquitoes, Ticks and Other Arthropods.”

MotherToBaby/Organization of the Teratology Information Specialists: “Fact Sheet: Insect Repellents.”

Mayo Clinic: “Got a tick? Get tweezers?” “Lyme Disease.”

InfantRisk Center/Texas Tech University Health Sciences Center: “Insect Bites and Repellent Sprays for Pregnant Women.”

MedicinesinPregnancy.org/UKTIS: “Chemical Insect Repellents.”

American Pregnancy Association: “Pesticides and Pregnancy,” “Herbs and Pregnancy.”

Malaria Journal: “Plant-based insect repellents: a review of their efficacy, development and testing.”

JOGCC : “Management of Tick Bites and Lyme Disease During Pregnancy.”

Reviewed by David Zelman on April 1, 2017

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Should you avoid DEET when pregnant?

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