De materia medica refers to "mūmiyā", a kind of asphalt, and not to human mummies. The use of human remains began during the Middle Ages. https://en.wikipedia.

De materia medica refers to "mūmiyā", a kind of asphalt, and not to human mummies. The use of human remains began during the Middle Ages. https://en.wikipedia.org/wiki/Mummia https://en.wikipedia.org/wiki/Mummia