to cool down the impurities therein were then removed by ultracentrifuge auxiliary agents frequently used for oral liquid were added thereto and uniformly mixed and a 20 000 ml oral liquid was prepared by conventional processes for oral liquid 300 g radix panacis quinquefolii 400 g ganoderma 250 g fermented cordyceps sinensis powder and 350 g flos rosae rugosae were weighed out the radix panacis quinquefolii and ganoderma were sliced and the fermented cordyceps sinensis powder was put in a cloth bag the above four drugs were soaked in water for 1 h and decocted by heating for 3 times the first decoction lasted for 2 h and the following decoctions each lasted for 1 h with a 10 fold amount of water added for each decoction the three liquid extracts were combined and filtered the liquid filtrate was concentrated to an appropriate level the liquid concentrate was left to cool down the impurities therein were then removed by ultracentrifuge auxiliary agents frequently used for oral liquid were added thereto and uniformly mixed and a 20 000 ml oral liquid was prepared by conventional processes for oral liquid 200 g radix panacis quinquefolii 450 g ganoderma 150 g fermented cordyceps sinensis powder and 200 g flos rosae rugosae were weighed out the radix panacis quinquefolii and ganoderma were sliced and the fermented cordyceps sinensis powder.