
Boric acid is not safe for humans. Boric acid poisoning may be acute or chronic. Acute poisoning occurs when individuals swallow powdered cockroach-killing products that contain boric acid. Chronic poisoning occurs when individuals are repeatedly exposed to boric acid. In the past, a diluted boric acid solution was used to clean and dress the wounds. Individuals repeatedly exposed to the dilute boric acid eventually developed boric acid poisoning. The symptoms of boric acid poisoning include:
- Blue-green vomit
- Diarrhea
- Bright red rash (resembling boiled lobster)
- Blisters
- Collapse
- Coma
- Seizures
- Drowsiness
- Fever
- Low blood pressure
- Sloughing of skin
- Lack of desire to do anything
- Twitching of facial muscles, arms, hands, legs, and feet
Boric acid may also cause death if there is a perforation in the esophagus and stomach, which may result in serious infections in both the chest and abdominal cavities.
What is boric acid?
Boric acid is a pesticide found in nature and many other products. They are mainly used to kill mites, fungi, plants, and insects, including fleas, termites, cockroaches, and wood decay fungi.
Boric acid is mainly found in:
- Antiseptics and astringents
- Enamels and glazes
- Medicated powders
- Skin lotions
- Some paints
- Glass fiber manufacturing
- Rodent and ant pesticides
- Photography chemicals
- Powders to kill roaches
- Some eyewash products
How does boric acid act?
Boric acid can disrupt the stomach and affect the nervous system of the insects. It can also scratch and damage the exterior of insects. The borax acts by:
- Drying out the plants
- Stopping plants from producing the energy they need from the light
- Stopping the growth of fungi by preventing them from reproducing
What to do if you had boric acid poisoning?
If the skin is exposed to boric acid, wash the area immediately with plenty of running water.
If the chemical comes in contact with the eyes, rinse the eyes with cool water for 15 minutes.
If boric acid is swallowed, seek emergency medical treatment.
How does the physician treat boric acid poisoning?
At the emergency room, the person may receive:
- Airway support, including oxygen, intubation, and ventilator
- Blood and urine tests
- Endoscopy to check for burns in the stomach and esophagus
- Chest X-ray
- Fluids through vein
- Electrocardiogram (ECG)
- Medications to subside the symptoms
- Hemodialysis may help to clear the boric acid from the blood and prevent damage to kidneys and gastrointestinal tract
- Gastric lavage (a tube inserted in the stomach to clear out its contents) with charcoal powder may help reduce absorption in the body.
In the case of skin exposure, the treatment includes:
- Debridement (surgical removal) of skin surfaces
- Irrigation (rinsing the skin), possibly every few hours for several days
- The physician may recommend surgery if the acid perforates the esophagus, stomach, or intestine.
What happens to boric acid in the environment?

SLIDESHOW
The 14 Most Common Causes of Fatigue See SlideshowHealth Solutions From Our Sponsors
Medline Plus. Boric Acid Poisoning. https://medlineplus.gov/ency/article/002485.htm#:~:text=Boric%20acid%20is%20a%20dangerous,products%20that%20contain%20the%20chemical.&text=Chronic%20poisoning%20occurs%20in%20those%20who%20are%20repeatedly%20exposed%20to%20boric%20acid.
Bakar BA, Yosuf NA, Abdulamir AS. Risk and Health Effect of Boric Acid. American Journal of Applied Sciences. January 2010;7(5). https://www.researchgate.net/publication/46168566_Risk_and_Health_Effect_of_Boric_Acid
Top Is Boric Acid Safe for Humans? Related Articles
Food Poisoning
Concerned about food poisoning outbreaks? From ground beef to lettuce, many foods can cause them. Learn about foodborne diseases like Salmonella, E. coli, norovirus, Campylobacter, Staph, and hepatitis A.Arsenic Poisoning
Arsenic comes in two forms, inorganic and organic. Organic arsenic poisoning is usually not poisonous to humans; however, inorganic arsenic in large enough amounts can lead to shock and death. Symptoms of arsenic poisoning include nausea, abdominal pain, diarrhea, dehydration, dark urine, vertigo, delirium, shock, and death. Treatment for arsenic poisoning includes Hemodialysis and a variety of drugs.Can Ricin Poisoning Cause Death?
Effects of ricin poisoning depend on whether ricin was inhaled, ingested, or injected. Ricin poisoning can eventually lead to multiple organ failure, leading to death within 36-72 hours of exposure, depending on the dosage of ricin and mode of exposure. There is no antidote for ricin; hence, ricin poisoning is mainly treated symptomatically with supportive medical care to reduce the effects of poisoning.Ciguatera Poisoning
Ciguatera poisoning is a type of food poisoning caused by the ciguatera toxin found in a variety of large reef fish found between the Tropic of Cancer and the Tropic of Capricorn. Symptoms of ciguatera poisoning include diarrhea, nausea, vomiting, abdominal pain, dizziness, vertigo, numbness, tingling, and muscle pain. Ciguatera poisoning requires medical treatment.
Food Poisoning Quiz
What causes food poisoning? Can it be prevented? Take this quiz to learn about food safety and how to guard yourself against food poisoning.How Long Does It Take to Get Lead Poisoning?
Lead poisoning usually takes months or years of exposure to a small amount of lead at home, work or daycare. When exposed to large amounts of lead, it can quickly lead to lead poisoning (acute poisoning).Lead Poisoning
Lead-based paint and lead contaminated dust are the main sources of exposure for lead in U.S. children. Lead-based paints were banned for use in housing in 1978. All houses built before 1978 are likely to contain some lead-based paint. However, it is the deterioration of this paint that causes a problem. Approximately 24 million housing units have deteriorated leaded paint and elevated levels of lead-contaminated house dust. More than 4 million of these dwellings are homes to one or more young children. Lead poisoning is entirely preventable. The key is stopping children from coming into contact with lead and treating children who have been poisoned by lead.Mercury Poisoning
Mercury is a naturally occurring element found in water, soil, and the air. Mercury also is contained in some fish, some of the products we use in the home, school, or dentist. Mercury poisoning can cause cognitive problems, dermatitis, tremor and other symptoms. Information about sources of mercury exposure, potential health effects, symptoms of exposure, fish that may contain mercury, consumer products that contain mercury, and ways to reduce your exposure to mercury is important for the health of you, and your family.Plants and Rashes
You may know to look for poison ivy's three-leaf stem, but what else do you know about rash-causing plants? WebMD explores myths and facts of poison plants.Ricin Poisoning
Ricin is a biological toxin that can be made from processing castor beans. The length of time it takes for the poison to begin working depends on if you inhaled or ingested it, or if your skin and eyes were exposed. However, generally symptoms begin a few hours after poisoning; typically less than 10. You can die from ricin poisoning between 36 and 72 hours after exposure. Symptoms of ricin poisoning include:
- Fever
- Cough
- Nausea
- Low blood pressure
- Diarrhea
- Seizures
- Blood in the urine
As there is no antidote, treatment focuses on minimizing the effects of poisoning.
What Does Lead Poisoning Do To Adults?
Lead is a naturally occurring toxic metal found in the earth’s crust. Excess lead buildup in the body can cause lead poisoning. Although lead poisoning primarily affects children, it can also prove to be dangerous in adults.What Happens When You Get Mercury Poisoning?
Exposure to high levels of mercury can harm the brain, heart, kidneys, lungs, and immune system of people of all ages. Very young children and unborn are the most susceptible to the effects of mercury. Although mercury is known to cause tumors in rats in the laboratory, there is insufficient proof to link mercury with cancers in humans.