Phospho-Energon Pills as sold in Sweden in the early 20th century.

Phospho-Energon was a medicine that was sold in Swedish pharmacies from 1936–1943. It was sold as a potent, mysterious medicine that could cure anxiety, insomnia, fatigue, asthenia, headaches, etc. This is the Arsenic (Arsenik) version.

However ingredients in the Kola version included: “Dried cow brain; Dried kola extract; Ferrous tartrate; Calcium pantothenate; Choline; Copper sulphate; Licorice; Nicotinamide; Pyridoxine; Riboflavin (B-2); Thiamine (B-1)”.

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