Can hydrogen peroxide kill you

Answer 1

absolutely. In small doses it is practically harmless, it might make you throw up a bit, but yes, it can and will be the cause of your ultimate demise if you screw around. Yes...ultimate demise.

Answer 2

WIKIPEDIA SAYS:

Hydrogen peroxide (H2O2) is a very pale blue liquid, slightly more viscous than water, that appears colorless in dilute solution. It is a weak acid, has strong oxidizing properties, and is a powerful bleaching agent. It is used as a disinfectant, antiseptic, oxidizer, and in rocketry as a propellant.[2] The oxidizing capacity of hydrogen peroxide is so strong that it is considered a highly reactive oxygen species.

So, as wikipedia is telling us above, I think that HP (H202) is not safe to drink.

Answer 3

No. Heck, drinking water isn't technically "safe." It all depends on how much, and various other factors.

Accidentally swallowing a small amount of 3% hydrogen peroxide (the typical concentration found at drug stores) probably isn't going to cause lasting damage, but it's still not a great idea to drink it intentionally. (Among other things, it releases gaseous oxygen into the stomach, producing results varying from mild discomfort due to the excess gas to actually bursting the stomach depending on the quantities involved.)

At higher concentrations... well, you know all those foods advertised as being healthy because they're "high in antioxidants"? Peroxides are one of the reasons you need antioxidants. They're generally very bad for living things, which is why we use dilute hydrogen peroxide as an antiseptic... it kills bacteria, and can kill human cells also (though human cells do deal with it slightly better, because we have enzymes specifically designed to break down peroxides, which is where all the foaming comes from when you pour it into an open wound: the peroxidases in your blood are turning it into water and oxygen).

Answer 4

Depending on the size of the bottle, very likely.