Hypokalemic periodic paralysis (HPP) is a rare disease characterized by reversible attacks of muscle weakness due to hypokalemia. The attacks may occur everyday, weak, month or once a year and may last for a few hours to several days. The serum potassium level is low during the attack. However, the serum potassium levels are normal between two attacks. The most common causes of HPP are familial periodic paralysis (FPP), thyrotoxic periodic paralysis (TPP) and sporadic periodic paralysis (SPP). We report, hypokalemic periodic paralysis due to use of corticosteroid.