A. C. Wootton, Chronicles of Pharmacy, Vol. 1…
“ The Daughters of Æsculapius are often described as allegorical figures, Hygeia representing health, and Panacea, medicine. Hygeia especially was widely worshipped by Greeks, and when rich people recovered from an illness they often had medals struck with her figure on the reverse. Pliny says it was customary to offer her a simple cake of fine flour, to indicate the connection between simple living and good health. Panacea was likewise made a divinity. She presided over the administration of medicines. ”
