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  • Title: Studies on formulation development of mouth dissolving tablets of Carvedilol.
    Author: Pokharkar V, Dhar S, Mandpe L.
    Journal: Hindustan Antibiot Bull; ; 49-50(1-4):21-8. PubMed ID: 19957540.
    Abstract:
    Carvedilol a poorly water soluble drug undergoes extensive first pass metabolism, which reduces its bioavailability to 25-30%. Mouth dissolving tablets of Carvedilol were prepared with the purpose of delivering the drug directly into the systemic circulation and bypassing the hepatic first pass metabolism with a concomitant increase in bioavailability. The solubility of Carvedilol was improved by forming inclusion complex with cyclodextrin which was then further used for the formulation of mouth dissolving tablet. Differential scanning calorimetry and Infrared spectroscopy results indicated no incompatibilities between drug-excipient mixtures. Effect of three different superdisintegrants on disintegration was studied. The formulations were evaluated for drug content, content uniformity, friability, disintegration time and in-vitro dissolution. Tablets containing Carvedilol-beta-cyclodextrin complex exhibited good tablet properties, with 90% drug dissolved within 5 min. This demonstrated the effectiveness of using various superdisintegrants and Carvedilol-beta-cyclodextrin complex in formulation of mouth dissolving tablet.
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