Table 4. Comparison of the Recommended Method for Two Real Samples Containing Cimetidine with Reported Labels of the Manufacturer^a.

real samples	reported value	found by the developed method	relative error (%)
ampule	200 mg/2 mL	205.4 ± 0.9	–2.7
tablet	200 mg/tablet	190.8 ± 0.6	–4.6

^ax = ts/√n at 95% confidence (n = 3).