Antitumor and antiviral medications and method for producing the same

Antitumor and antiviral medications of curative or preventive efficacy on tumors or cancers can be produced by activating lymphocytes collected or proliferated and inducing heat shock proteins having a prescribed molecular weight in the activated lymphocytes. By heating the activated lymphocytes or adding galenical extract of crude drugs or their compounds to the activated lymphocytes, the heat shock proteins having the desired molecular weight of the order of 70 kDa can be induced in the activated lymphocytes. Thus, the medications remarkably effective in preventing and treating various types of cancers, tumors and viral infections can be obtained.