·I sensitive and selective procedur« ~1'£1.\ developed for the determination ofniclosomide based on square '·Pave voltummetery at a carbon paste electrode. Cyclic voltammetery l"·as U'!>'e<I to investigcae the l/Jeclroc'fu~nu'ct1l retf~ctio11 of r~ic/~J~IJti~~e at. (l C(irb~n puste electrode. Niclosomide u:as ir:~versih~v. 6-educed at -680 mV 111 ii. I M ;\·H.11:'1/1,cl !>1fikr .m/1J1u)11 of fJ/l R.5 ill carbon paste electrode. 111e p/1 (1/ the electrotyte solution, the square l•'Cl\'e />t.1rt.1n1et(!rs, accumulation potential and preconcentralion time 1.1·as optimized. . .£1 linear voltannnetric l'i.'Sf'On,..,·e for niclosamide \l'llS obtained in the concentrcaion range of 1 x J!f''-5.3 x to' M, with!( detection limir.of6..! x JO: M. 111e method WU:> SU•'c:es.'Ji1/iy oppliedfor the determination of niclosamide in pharmaceutical formutotion samples .