Menthol is used as a flavoring agent for candy and other products. This article discusses menthol poisoning from swallowing pure menthol.
This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.
Menthol may be found in:
Creams and lotions to relieve
Inhalants, lozenges, or ointments to treat
Medications to treat sore mouth, throat, or gums
Ointments to treat aches and pains(Ben-Gay, Therapeutic Mineral Ice)
Note: This list may not include all uses of menthol.
- Bladder and kidneys
Blood in the urine No urine output
- Rapid breathing
Abdominal pain Diarrhea Nausea Vomiting
- Heart and blood
- Nervous system
- Unsteady walking
Seek immediate medical help. If the menthol is in ointment/cream form, wipe away any that has contacted the skin or eyes, and flush with water for several minutes. Call poison control for further guidance.
Before Calling Emergency
Determine the following information:
- The patient’s age, weight, and condition
- The name of the product (ingredients and strengths, if known)
- Time it was swallowed
- Amount swallowed
Poison Control, or a local emergency number
The National Poison Control Center (1-800-222-1222) can be called from anywhere in the United States. This national hotline number will let you talk to experts in poisoning. They will give you further instructions.
This is a free and confidential service. All local poison control centers in the United States use this national number. You should call if you have any questions about poisoning or poison prevention. It does NOT need to be an emergency. You can call for any reason, 24 hours a day, 7 days a week.
Take the container with you to the hospital, if possible.
What to expect at the emergency room
The health care provider will measure and monitor your vital signs, including temperature, pulse, breathing rate, and blood pressure. Symptoms will be treated as appropriate. You may receive:
Breathing support, including a breathing tube
Tube down the windpipe and lungs to look for damage and burns (bronchoscopy)
Fluids through a vein (by IV)
Medicines to treat the effects of the poison
Tube through the mouth into the stomach to wash out the stomach (
How well you do depends on the amount of poison swallowed and how quickly medical treatment is received. The faster you get medical help, the better the chance for recovery.
Swallowing such poisons can have severe effects on many parts of the body.
However, pure menthol is not readily available. The menthol found in many over-the-counter products is usually watered down and mixed with other ingredients. Therefore, how well a patient does also depends on the other ingredients in the product.