The invention relates to a capsule made of a polysaccharide containing Saccharomyces boulardii in an amount of 10E8 - 10E10 units/g, and at least one bacteria selected from the group consisting of Lactobacillus crispatus, Lactobacillus jensinii, Lactobacillus gasseri and Enterococcus faecium in an amount of 10E8 - 10E9 cfu/g.