An object of the present invention is to provide a dried product of an extract from inflammatory rabbit skin inoculated with vaccinia virus having an inhibitory activity for the production of a kallikrein-like substance and also to provide a process for manufacturing the same. The present invention relates to a process for the manufacture of a dried product of the present extract, characterized in that, in the drying for the manufacture of a solid preparation containing an extract from inflammatory rabbit skin inoculated with vaccinia virus as an effective ingredient, a saccharide, sugar alcohol or ascorbic acid is added thereto and mixed therewith before getting to dryness and then the mixture is dried. In accordance with the present manufacturing process, it is now possible to prepare a dried product having an inhibitory activity for the production of a kallikrein-like substance of the present extract and it is also possible to manufacture a solid preparation for oral administration such as tablets using the above.
