A composition suitable for parenteral administration based on hydrolyzate obtained from natural bioresources selected from bivalve molluscs, crustaceans, annelids and leeches. Such compositions may be used to prevent and/or treat a pathological condition in a mammal in need thereof and include boosting of the immune system, normalizing the metabolic process, normalizing calcium-phosphorous levels, reducing stress, wound healing and detoxyfying.
