Abstract
AbstractIn developing compressed tablets trepibutone 40mg, dissolution studies indicated that the compression pressure applied exerted strong influence on drug dissolution from the tablets. It was found that the incorporation of disintegrants in the granular formulation prevented the decrease in dissolution rate of drug from tablets by compression. Instead of the intragranular disintegrants, incorporation of a rubber powder, which does not swell at all in water and has some elastic recoveries after compression, did not improve the drug dissolution from tablets. It was concluded that the addition of disintegrants in the granular formulation resulted in little prevention of the particle aggregation during compression. The swelling of disintegrant grains in water is considered to play an important part in the deaggregation of drug particles
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