1. Ramzia I, Ehab F, Bagary El (2011) Spectrofluorimetric and spectrophotometric methods for the determination of sitagliptin in binary mixture with metformin and ternary mixture with metformin and sitagliptin alkaline degradation product. Int J Biomed Sci 7(1):62–69
2. Ajithdas A, Nancy K (2000) Simultaneous estimation of metformin hydrochloride and glipizide solid dosage forms by ultraviolet spectrophotometry. Ind Drugs 37:533–536
3. Khan G, Sahu D, Agrawal YP, Sabarwal N, Jain A, Gupta AK (2011) Simultaneous estimation of metformin and sitagliptin in tablet dosage form. Asian J biochem Pharm Res 1(2):352–3588
4. Lad NR, Bhoir SI, Bhoir IC, Sundaresan M (2003) Concurrent assay of metformin and glimepiride in tablet using RP-HPLC with wavelength programming. Ind J Pharm Sci 65:650–653
5. Raja T, lakshmana rao K (2012) Validated RP HPLC method for simultaneous estimation of metformin hydrochloride and sitagliptin phosphate in bulk drug and pharmaceutical formulation. Int J Pharm Chem Bio sci 2(4):696–702