Effects of humidity and temperature on in vitro dissolution of carbamazepine tablets |
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Authors: | JT Wang GK Shiu T Ong-Chen CT Viswanathan JP Skelly |
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Affiliation: | Biopharmaceutics Research Branch, Food and Drug Administration, Washington, DC 20204. |
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Abstract: | The rate and extent of dissolution of various approved marketed carbamazepine (CBZ) tablets exposed to 33, 52, 75, and 97% relative humidities at both room temperature and 40 degrees C, and saturated water vapor at room temperature were compared to fresh unstressed tablets. The dissolution data indicate that exposure of CBZ tablets to high humidity and temperature can have a profound effect on tablet disintegration and dissolution. The dissolution rates of some batches of CBZ products exposed to 97% humidity at 40 degrees C or saturated water vapor at room temperature were drastically reduced in only 6-7 days. |
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