Johann Konrad Dippel, 1673–1734, by E. E. Aynsley and W. A. Campbell

DURING the sixteenth and seventeenth centuries there flourished a school of medical chemistry known as Iatrochemistry, the main object of which was to search for new medicines rather than to seek to turn base metals into gold.

Throughout this period numerous accounts were written about the wonderful curative properties of various chemical substances, usually metals and their derivatives, and gold, mercury, and antimony were each claimed to be the long sought after panacea.

At about the end of the Iatrochemical period there appeared a drug having a foetid smell and an unpleasant taste called Dippel's Animal Oil, for which its discoverer, Johann Konrad Dippel, claimed the properties of a universal medicine. This drug was included in the pharmacopoeias right up to the beginning of the nineteenth century, and the purpose of the present study is to show what manner of man Dippel was, and in what circumstances his assertion was made.

Read more here

wikipedia page here

also:

Investigating the ‘Real Frankenstein Potential’ of Johann Conrad Dippel, Pt. 1
By Mike A. Zuber here