Heterogeneous photocatalytic degradation of livofloxacin has been investigated in aqueous medium using visible light. The carbon doped titania has been prepared by sol-gel precipitation method. The rate of photocatalytic degradation of drug was monitored spectrophotometrically. The effect of variation of different parameters like pH, concentration of livofloxacin, amount of photocatalyst, dopant percentage and light intensity on the rate of photocatalytic degradation was also observed. A tentative mechanism for the photocatalytic degradation of livofloxacin has been proposed.