Abstract
AbstractThe effect of storage at relatively high temperature and humidity on tablets prepared from different bases was studied for up to eight weeks. Drug release from tablets was followed by measuring the concentration of a marker (amaranth) in the dissolution medium. Lactose and mannitol based tablets showed an increase in hardness and disintegration time, and a decrease in the initial rate of drug release. Sorbitcl based tablets, stored under 50°C/50% relative humidity (R.H.), showed a decrease in hardness and slower disintegration and dissolution. When stored under 40°C/90% R.H., the tablets were completely deformed within three days. Tricalcium phosphate and cellulose-based tablets did not show any storage related changes in hardness, disintegration or drug release.
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