King Charles II was on his deathbed. The year was 1685, and the monarch had suffered a stroke. Doctors tried everything to save him, but the king was convinced that one particular remedy would work. Years before, Charles II had paid Oliver Cromwell’s own doctor and chemist, Jonathan Goddard, a handsome sum for the secret formula for Goddard’s Drops. The chemist claimed that his invention, which later came to be known as King’s Drops, was a kind of miracle cure for all manner of ailments. The recipe for this liquid…
