| Parameters | Sitagliptin | Metformin |
| Standard peak area | 15,067 | 148,722 |
| Test peak area | 14,985 | 146,128 |
| Average weight | 704 mg | 704 mg |
| Label claim | 50 mg | 500 mg |
| % Purity of standard | 99.8 | 99.9 |
| Amt obtained | 49.25 mg | 490.0 |
| % Assay | 98.15% | 99.4% |