抄録
Nine brands of cephalexin granule were compared in regard to change in appearance, weight, pH value and potency under a fixed condition and after their dissolution in water. Two of the 9 brands were found to fall short of the labeled standard of fine granules. When the granules were stored at 25° at relative humidity 50%, no significant change was observed in appearance, weight, pH and residual potency. When the granules were dissolved in water, no brands showed marked reduction in potency in 14 days, but some were inactivated in 14-30 days.
