Medicine in the Middle Ages combined science, religion, and magic in traditional practices that evolved over the knowledge of Antiquity, travels, and discoveries made in distant countries. To the remedies from plants cultivated by the monks and transmitted orally were added the most unusual pharmacopeias based on gold, precious stones, or spices. Monastic orders combined the functions of physicians and apothecaries. They also practiced opotherapy, a therapy with products of animal origin, examples of which (eyes of crayfish, charred bones) can be found in the Hôtel-Dieu museum at the Hospices de Beaune.