Physical Properties and Stability of Diazepam and Phenobarbitone Sodium Tablets Prepared with Compactrol

Abstract

AbstractCompactrol as a newly introduced direct compressible vehicle was used for the preparation of Diazepam and phenobarbitone sodium tablets. Spray dried lactose and wet granulation technique were also employed to prepare these tablets for comparison. The effect of storage at 75% RH, at two temperature levels (25° and 45°) on the physical properties of these tablets was studied for 6 weeks. It was found that, there were an increase in tablet weight, thickness and friability per cent, while a significant decrease in hardness was observed. Tablets prepared with compactrol showed no significant changes in both disintegration and dissolution times, while tablets prepared with spray dried lactose showed a marked decrease in disintegration and dissolution times. On the other hand, tablets prepared by wet granulation showed a pronounced in crease in both disintegration and dissolution times.