This experiment avoids pollution and recycles of the drugs and also promotes economically benefited inhibitor. In this test expired norfloxcin drug was examined for testing its inhibitive impact on mild steel in 1 M HCl corrosive medium with the weight reduction and electrochemical strategies. The Various parameters were figured, for example, corrosion rate, inhibition efficiency and surface scope. The weight reduction technique demonstrates that the inhibition efficiency increments when inhibitor concentration, immersion period and temperature increments. Acquired outcomes in electrochemical Impedance and weight reduction studies are especially phenomenal concurrence with each other. Thermodynamic parameter like free vitality esteem was negative, which shows unconstrained adsorption of inhibitor on the surface of the mild steel. The adsorption way of the inhibitor on the surface of mild steel was under similarity with Langmuir adsorption isotherm. The mild steel surface morphology, with and without inhibitor was contemplated by utilizing scanning electron microscopy.