The electrochemical behavior of manganese ion was studied in the absence and presence of favipiravir drug at 305.15 K by cyclic voltammetry technique using glassy carbon electrode (GCE) as working electrode with surface area equal 0.0314 cm², Pt wire with diameter 0.5 mm as an auxiliary electrode and Ag/AgCl as a reference electrode in 0.1 M KCl (30 ml) as supporting electrolyte to balance the charge transfer. Also, to control the speed at which a potential is scanned, different scan rates (0.01, 0.02, and 0.1) V.s^-1 were carried out. A high current is observed when scan rates are faster because the diffusion layer size decreases.