Simple, accurate and reproducible UV spectrophotometric method was established for the assay of Fourosemide based on the formation of Schiff 's bases coupling with aromatic aldehydes such as benzaldehyde, salicylaldehyde, 2-methoxy benzaldehyde, anisaldehyde, vanilline, 2,3,4-chlorobenzaldehyde, 4-nitro benzaldehyde and dimethylaminobenzaldehyde in presence of sulphuric acid, The optical characteristics such as Beer's law limits, molar absorptivity and Sandell's sensitivity for the methods are given. Regression analysis using the method of least squares was made to evaluate the slope (b), intercept (a) and correlation coefficient (r) and standard error of estimation (SE) for each aldehyde. Determination of furosemide in bulk form and in pharmaceutical formulations were also incorporated.