Abstract: A product in a closed container, (A) the product releasing and/or containing H.sub.2 S, and (B) the container being permeable to gases, another container, largely impermeable to gases and holding an H.sub.2 S absorber, being arranged around said container. The product especially may be infusion solutions containing substances which can release or generate H.sub.2 S, in addition to other amino acids, if desired. The solutions according to the invention clearly are more durable and contain less H.sub.2 S than comparable known solutions of the art.