Circadin Prolonged Release Tablets
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Dissolution of Intact, Divided and Crushed Circadin Tablets: Prolonged vs. Immediate Release of Melatonin
Circadin 2 mg prolonged-release tablet is the only licensed melatonin product available in the UK. Circadin is indicated for patients with primary insomnia aged 55 and over, but is more widely used "off-label" to treat sleep disorders especially in the paediatric population. Children and older people often have difficulty swallowing tablets and dividing the tablet is sometimes required to ease ...
متن کاملChitosan and sodium sulfate as excipients in the preparation of prolonged release theophylline tablets.
The major objectives of this study were to monitor the effect of cross-linking of cationic chitosan in acidic media with sulfate anion during granules preparation by wet granulation method prior to tableting using theophylline (TPH) as a model drug. The prepared granules and the compressed tablets were subjected to in vitro evaluation. The properties of the prepared matrix granules and the comp...
متن کاملAn Investigation into the Optimization of Release Profile of Lithium Carbonate from Matrix-type Tablets Containing Carbopols, Pemulen and Eudragits
The influence of various polymers on the release rate of lithium carbonate from matrix-type tablets was investigated in an attempt to formulate a sustained release solid dosage form. For this purpose, tablets containing 450 mg of lithium carbonate along with various amounts of Carbopol 934P, 971P, 974P, Pemulen and Eudragit RLPO as retarding agents and inactive ingredients (e.g. PVP, Avicel or ...
متن کاملDESIGN AND EVALUATION OF PROLONGED RELEASE GLICLAZIDE MATRIX TABLETS by FATHELRAHMAN ABDELRAZIQ ABDELKAREEM ADAM
The prolonged release gliclazide matrix tablets were prepared using polymeric materials, namely, HPMC, Kollidon SR, Carbopol with Xanthan gum, Eudragit RSPO and Eudragit RLPO. HPMC, Kollidon SR and Carbopol with Xanthan gum were able to retard gliclazide release from matrix tablets in a concentration dependent manner, but the rate of retardation differed among the polymers. On the other hand, d...
متن کاملDevelopment and evaluation of regioselective bilayer floating tablets of Atenolol and Lovastatin for biphasic release profile
This study was performed to design bilayer regioselective floating tablets of atenolol and lovastatin to give immediate release of lovastatin and sustained release of atenolol. Bilayer floating tablets comprised two layers, i.e immediate release and controlled release layers. The immediate release layer comprised sodium starch glycollate as a super disintegrant and the sustained release layer c...
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