A pharmaceutical composition, including, parts by weight of: 100-170 of a ginkgo flavone, 40-100 of a jujube extract, 100-200 of an extract of a peel of Trichosanthes kirilowii, 30-60 of a saponin of Codonopsis, 50-100 of a saponin of American ginseng, 40-70 of a saponin of Radix astragalu, 20-50 of hirudin, 3-10 of a coenzyme Q10, 40-100 of a longan extract, 20-50 of a modified starch, 100-150 of a carthamin, 100-150 of an extract of peach kernel, 30-50 of a gastordin, 120-200 of a salvianolic acid, 40-90 of an extract of Ligusticum chuanxiong, 100-150 of a saponin of Panax notoginseng, 0-50 of a black sesamin, and 0-50 of an astaxanthin.

To provide a method for producing an oyster meat essence that more amply incorporates an antioxidant substance with high ORAC value as follows. A portion of an oyster meat extract more amply incorporating an antioxidant substance with high ORAC value is selected. An extraction method that allows incorporating further large amount of antioxidant substance with high ORAC value is employed. The beneficial oyster meat extract can be efficiently extracted in large amounts. Object An oyster meat is stored in an extraction container where water is accumulated. An oyster meat essence is extracted to generate an extract liquid. The extract liquid is injected to a centrifuge, and concurrently the centrifuge is rotated at a centrifugal acceleration where an antioxidant substance with high antioxidative potency and ORAC value is separated and removed from the extract liquid. The antioxidant substance with higher antioxidative potency and ORAC value is separated. Thus, the oyster meat essence incorporating a large amount of antioxidant substance with high antioxidative potency and ORAC value is obtained.