Nitrous oxide

Rarity: Common

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Class

Invention

Domain

Science and technology

Knowledge cost

3

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What Wikipedia says

Nitrous oxide, as medical gas supply, is an inhaled gas used as pain medication, and is typically administered with 50% oxygen mix. It is often used together with other medications for anesthesia. Common uses include during childbirth, following trauma, and as part of end-of-life care.

Excerpt from the Wikipedia article “Nitrous oxide (medication)”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Owain.davies, CC BY 3.0, via Wikimedia Commons.