Table 2 shows some physicochemical parameters of the various brands of ibuprofen tablets. The weight uniformity test on the tablets indicated no significant differences (P > 0.5) in the weights of tablets from the different brands, hence conformed to the BP specification, i.e. that not more than two of the individual weights should deviate from the average weight by more than ±5% and none should deviate by more than ±10% [12]. Despite the uniformity of weights within each brand, there were significant weight variations among the brands.