OBJECTIVE:To prepare a liposome hydrogel of diclofenac sodium(DCS) and evaluate it. METHODS:The DCS liposomes were prepared by the conventional thin film hydration method at first, to which the carbopol was added as a support base for preparation of the hydrogel of DCS. An one-order derivative UV spectrophotometry was established to evaluate the DCS in hydrogel.RESULTS:The average recoveries of three samples were (101 1±0 86)%,(99 90±1 04)%和(100 5±0 91)%, respectively and the average encapsulation eff...