A bifunctional hormone exhibiting an alpha-MSH activity and a natriuretic peptide activity is described. The bifunctional hormone comprises for example a first domain having alpha-MSH related hormonal activity covalently linked to a second domain having natriuretic peptide related hormonal activity. The bifunctional hormone of the present invention is useful for example for the prevention and/or treatment of renal related diseases or conditions, such as acute renal failure (ARF) or acute kidney injury (AKI).
