Hi,
Fluid retention can be due to various reasons like heart failure, low serum protein,
renal failure, liver failure etc. Your father needs to get evaluated for the above mentioned causes to find out the cause for fluid build up in your father. Depending upon the cause treatment varies. Dobutamine is a inotrope, as a support in the short-term treatment of cardiac decompensation due to depressed contractility resulting either from organic heart disease or from cardiac surgical procedures.