Medical history is stained by human blood, but not only that of patients. For centuries, human remains were vital ingredients in solutions used to treat a myriad of maladies. From Maria Dolan at Smithsonian:

“[Louise] Noble’s new book, Medicinal Cannibalism in Early Modern English Literature and Culture, and another by Richard Sugg of England’s University of Durham, Mummies, Cannibals and Vampires: The History of Corpse Medicine from the Renaissance to the Victorians, reveal that for several hundred years, peaking in the 16th and 17th centuries, many Europeans, including royalty, priests and scientists, routinely ingested remedies containing human bones, blood and fat as medicine for everything from headaches to epilepsy. There were few vocal opponents of the practice, even though cannibalism in the newly explored Americas was reviled as a mark of savagery. Mummies were stolen from Egyptian tombs, and skulls were taken from Irish burial sites. Gravediggers robbed and sold body parts.

‘The question was not, ‘Should you eat human flesh?’ but, ‘What sort of flesh should you eat?’’ says Sugg. The answer, at first, was Egyptian mummy, which was crumbled into tinctures to staunch internal bleeding. But other parts of the body soon followed. Skull was one common ingredient, taken in powdered form to cure head ailments. Thomas Willis, a 17th-century pioneer of brain science, brewed a drink for apoplexy, or bleeding, that mingled powdered human skull and chocolate. And King Charles II of England sipped ‘The King’s Drops,’ his personal tincture, containing human skull in alcohol. Even the toupee of moss that grew over a buried skull, called Usnea, became a prized additive, its powder believed to cure nosebleeds and possibly epilepsy. Human fat was used to treat the outside of the body. German doctors, for instance, prescribed bandages soaked in it for wounds, and rubbing fat into the skin was considered a remedy for gout.

Blood was procured as fresh as possible, while it was still thought to contain the vitality of the body. This requirement made it challenging to acquire.” (Thanks Browser.)

Read also:

• People in Albany drink fresh animal blood for medicinal purposes in 1881.