Compound spirit of ether

Friedrich Hoffmann (1660–1742), was a German physician.

Compound spirit of ether, also called Hoffmann's anodyne, Hoffmann's drops, or aetheris spiritus compositus, is a solution of one part diethyl ether in three parts alcohol. It is used traditionally as an anodyne or as a hypnotic. Its use as a drug was introduced by Friedrich Hoffmann.

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