| 摘要 |
Lyophilized compsn., which may be reconstituted by adding water, comprises a blood platelet substitute comprising cephalin having platelet factor-like activity (e.g. CHCl3, extract of human or rabbit brain) in combination with 0.05-1% wt. (pref. 0.1-0.5% wt.) of non-porous, fumed, particulate silica (particle size 20-60 m mu, surface area 50 sq. m/g). The silica particles pref. have 3 silano gps. per 100 sq. A of surface area. Calcium-free acacia, tragacanth, guar gum, dextran or sucrose may be present as suspending agent.
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