A simple and cost effective spectrophotometric method is described for the determination of Nevirapine in pure form and in pharmaceutical formulations. The proposed method was based on the formation of chloroform extractable complex of Nevirapine with wool fast blue. The absorbance of the extractable ion pair complex is measured at the wavelength of maximum absorbance 590 nm against the reagent blank and obeys beer’s law in the concentration range 50 – 250 μg/ml. The results of analysis have been validated statistically and also by recovery studies. The method were found to be simple economical accurate and reproducible and can be adopted in routine analysis of Nevirapine in bulk drug and Pharmaceutical dosage form.