Patients having a chronic or acute disease or acute condition, especially patients at the ICU (Intensive Care Unit) suffer from fluid imbalance. The present invention provides a medicament for regulating the fluid balance and/or improving the fluid balance of such patients. Subject matter of the present invention is an anti-Adrenomedullin (ADM) antibody or an anti-adrenomedullin antibody fragment or an anti-ADM non-Ig scaffold for regulating the fluid balance in a patient having a chronic or acute disease or acute condition. The present invention also provides a method for regulating the fluid balance in a patient having a chronic or acute disease or acute condition. Subject matter of the present invention is an anti-Adrenomedullin ADM antibody or anti-ADM non-Ig scaffold or an anti-adrenomedullin antibody fragment for use in therapy of a chronic or acute disease or acute condition of a patient for the regulation of fluid balance.
