Hydrogen Peroxide Dangers
Swallowing dilute (3%) hydrogen peroxide can be dangerous. Taking this product internally has been reported to cause the following problems:
- Nausea and vomiting
- Burns in the mouth, throat, esophagus, and stomach
- Bleeding in the stomach
- Inflammation of the intestines
- Stomach ulcer
- Rupture of the colon.
Hydrogen peroxide is also available in industrial strengths (10% or higher). These industrial strengths, which are not intended for human consumption, include the so-called "food grade" hydrogen peroxide (35%). These higher strengths can be extremely dangerous, especially if they are not diluted appropriately.
Swallowing concentrated hydrogen peroxide has been reported to cause the following problems:
- Severe burns of the mouth, throat, esophagus, and stomach
- Stomach bleeding
- Ulcerating colitis
- Intestinal gangrene
- Air embolism (a potentially life-threatening air bubble in the bloodstream)
- Swelling of the brain
Even when not taken internally, this product has a number of potential dangers. For example, skin contact with concentrated hydrogen peroxide can cause severe burns, and eye exposure to concentrated hydrogen peroxide can cause serious eye damage.
(Click Is Hydrogen Peroxide Safe? or Hydrogen Peroxide Side Effects to learn about other dangers associated with the use of this product.)