Figure 2 from: Logoyda L (2020) Efficient validated method of HPLC to determine amlodipine in combinated dosage form containing amlodipine, enalapril and bisoprolol and in vitro dissolution studies with in vitro/ in vivo correlation. Pharmacia 67(2): 55-61. https://doi.org/10.3897/pharmacia.67.e48220

Figure 2 Representative chromatogram of amlodipine in combinated tablets (1- peak of bisoprolol, 2- peak of enalapril, 3 – peak of amlodipine).