Mildew removers are common household cleaners. Swallowing, breathing in the product, or spraying it in the eyes can be potentially dangerous.
This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with has an exposure, call your local emergency number (such as 911), or your local poison center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States.
Poisonous ingredients include:
- Hydrogen peroxide
- Sodium hypochlorite
- Sodium perborate
- Sodium percarbonate
Mildew removers are sold under various brand names.
Mildew remover poisoning can cause symptoms in many parts of the body.
AIRWAYS AND LUNGS
- Breathing difficulty (from inhalation)
- Throat swelling (may also cause breathing difficulty)
EYES, EARS, NOSE, AND THROAT
- Severe pain in the throat
- Severe pain or burning in the nose, eyes, ears, lips, or tongue
- Vision loss
STOMACH AND INTESTINES
- Abdominal pain -- severe
- Bloody stools
- Burns of the esophagus (food pipe)
- Vomiting, possibly with blood
HEART AND BLOOD
- Low blood pressure -- develops rapidly
- Severe change in blood acid levels -- leads to organ damage
- Coma (decreased level of consciousness and lack of responsiveness)
- Necrosis (holes) in the skin or underlying tissues
Get medical help right away. DO NOT make a person throw up unless told to do so by poison control or a health care provider.
If the chemical is on the skin or in the eyes, flush with lots of water for at least 15 minutes.
If the person breathed in the poison, immediately move them to fresh air.
Before Calling Emergency
Get the following information:
- Person's age, weight, and condition
- Name of the product (ingredients and strength, if known)
- Time it was swallowed
- Amount swallowed
Your local poison center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States. This 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.
What to Expect at the Emergency Room
Take the container with you to the hospital, if possible.
The provider will measure and monitor the person's vital signs, including temperature, pulse, breathing rate, and blood pressure. Symptoms will be treated as appropriate. The person may receive:
- Breathing support, including a tube through the mouth into the lungs, and a breathing machine (ventilator)
- Bronchoscopy -- camera placed down the throat to see burns in the airways and lungs
- Chest x-ray
- ECG (heart tracing)
- Endoscopy -- camera placed down the throat to see burns in the esophagus and the stomach
- Fluids through a vein (IV)
- Surgical removal of burned skin (skin debridement)
- Washing of the skin (irrigation) -- perhaps every few hours for several days
How well a person does depends on the amount of poison swallowed and how quickly treatment was received. The faster a person gets medical help, the better the chance for recovery.
Swallowing such poisons can have severe effects on many parts of the body. The ultimate outcome depends on the extent of this damage. Damage continues to occur to the esophagus and stomach for several weeks after the poison was swallowed, and death may occur as long as a month later.
Agency for Toxic Substances and Disease Registry (ATSDR) website. Medical management guidelines for calcium hypochlorite and sodium hypochlorite. www.atsdr.cdc.gov/MMG/MMG.asp?id=927&tid=192. Updated October 21, 2014. Accessed December 29, 2017.
Hoyte C. Caustics. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 148.
Review Date 10/16/2017
Updated by: Jesse Borke, MD, FACEP, FAAEM, Attending Physician at FDR Medical Services/Millard Fillmore Suburban Hospital, Buffalo, NY. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.