The invention provides medicinal fungal preparations that have twenty or more times more medicinal potency than corresponding medicinal fungal preparations made by prevailing means in the prior art. In particular the invention provides nutrient-supplemented bioactive cell-ruptured cultures of medicinal fungi for which the post-rupture extraction medium is edible or potable, and has no significant side effects. The invention further provides methods to prepare them, and pharmacological preparations based on whole-culture biomass including the growth medium and metabolites.