A series of potent and less toxic, 5‐[((5‐substituted aryl)‐1,3,4‐thiadiazol‐2‐yl) thio]‐n‐alkyl}‐1,3,4‐oxadiazole‐2‐thiol was synthesized. Each compound was evaluated for anti‐inflammatory activity by carrageenan‐induced rat paw oedema method. Compounds PS1, PS4, PS9, and PS12 showed comparatively potent anti‐inflammatory activity as compared to control as well as other test compounds. These potent