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Dictionary · Drug

hydrogen peroxide

A clear liquid antiseptic that bubbles as it releases oxygen, used diluted to clean and disinfect.

HY-druh-jun puh-ROK-side noun

What it means

Sold over the counter as a 3% solution. It has been used to clean minor cuts, as a diluted mouth rinse and to soften earwax; stronger solutions disinfect surfaces and equipment. It harms healthy new tissue as well as germs, so it is no longer advised for routine cleaning of healing wounds. Swallowing strong solutions is dangerous.

For the nurse

Use it on a wound only when ordered, and dilute it as directed for mouth care. Keep it away from the eyes and out of children's reach.

At a glance

Drug classantiseptic
Spanishperóxido de hidrógeno
Also writtenH2O2

Related terms

surgical asepsis

Practices that keep an area or object completely free of microorganisms; also called sterile technique.

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