Boric acid is a dangerous poison. Poisoning from this chemical can be acute or chronic. Acute boric acid poisoning usually occurs when someone swallows powdered roach-killing products that contain the chemical.

Chronic poisoning occurs in those who are repeatedly exposed to boric acid. For example, in the past, boric acid was used to disinfect and treat wounds. Patients who received such treatment over and over again got sick, and some died.

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.

Boric acid

• Antiseptics and astringents
• Enamels and glazes
• Glass fiber manufacturing
• Medicated powders
• Skin lotions
• Some paints
• Some rodent and ant pesticides
• Photography chemicals
• Powders to kill roaches

Note: This list may not be all inclusive.

The main symptoms of boric acid poisoning are blue-green vomit, diarrhea, and a bright red rash on the skin. Other symptoms may include:

• Blisters
• Collapse
• Coma
• Convulsions
• Drowsiness
• Fever
• Lack of desire to do anything
• Low blood pressure
• Significantly decreased urine output (or none)
• Sloughing of skin
• Twitching of facial muscles, arms, hands, legs, and feet