Prednisolone is a synthetic analog of the natural glucocorticoid corticosterone that has anti-inflammatory and immunsuppressive actions. It avidly binds both glucocorticoid and mineralocorticoid receptors (Kis = 2.4 and 37 nM). Prednisolone Phosphate, prepared as the sodium salt, is a water-soluble ester of the poorly soluble parent molecule, prednisolone. It is rapidly hydrolyzed in vivo to the parent molecule when administered intravenously. In addition, when given orally, prednisolone phosphate is more readily absorbed than prednisolone, resulting in a higher effective blood concentration of prednisolone.
