Abstract
The objective of this study was to investigate cellulose acetate butyrate (CAB) as a carrier for extended-release alcohol-resistant matrix tablet. Powder blends were either directly compressed or granulated before compression. The drug release from CAB matrix tablet was robust to formulation/process parameters such as compression force (10−20 kN), granular size (0.15−1.40 mm), and drug content (50–70%). In addition, release medium variables such as ionic strength, pH, and agitation rate had no effect on the drug release. CAB matrix tablet was more robust than ethylcellulose matrix tablet; the release from CAB matrix tablet was not affected by ethanol content (up to 20% v/v) in the release medium irrespective of agitation. CAB is a promising polymer for formulating of alcohol-resistant extended-release matrix tablet.
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