Pharmaceutical preparations for pharmaceutical, medical use made of compositions of freeze-dried bacteria, of nutrients for bacteria and of biological substances secreted by bacteria, used in producing biological pharmaceutical preparations, for the purpose of restoring the balance of human microbiota, of treating or preventing intestinal and gastroenterological disorders, disorders linked to the imbalance of the intestinal flora, immune, autoimmune and inflammatory diseases, allergies, flatulence, diarrhea, abdominal pains, spasms and aiming at improving bowel and microbiota functions; bacterial feed additive for use as medicated dietary supplements made of an association of probiotics, tribiotics, eubiotics, mineral substances and vitamins, taken orally, for pharmaceutical, medical, dietary use, for the treatment or the prevention of intestinal and gastroenterological diseases, of allergies, of immune, autoimmune and inflammatory diseases