Can 35 percent hydrogen peroxide be ingested medically?

Answer 1

I would have to say No.

The Hydrogen Peroxide you buy at the drugstore is only 3%, and the label tells

if you want to use it as mouthwash, you should mix half-half with water, so you'd have 1.5%

And it says not to swallow it. I'm sure that if you accidentally swallowed a little bit,

you'd probably be OK.

Now imagine instead of 1.5%, you have 23 times the concentration! Imagine all that foam in your stomach. I think the reaction would be violent and very painful to say the least. And surely very dangerous.