Studies on combined release behaviors of versatile mini-tablets in capsule systems and fittings of their mathematical model / 药学学报
Acta Pharmaceutica Sinica
;
(12): 472-476, 2004.
Article
in Chinese
| WPRIM
| ID: wpr-302783
ABSTRACT
<p><b>AIM</b>To prepare nifedipine (NP) rapid release mini-tablet, sustained release mini-tablets, pulsed release mini-tablets and delayed-onset sustained release mini-tablets and develop multiplied pulsed drug delivery system (DDS), site-specific DDS, zero-order DDS and quick/slow DDS by various ways.</p><p><b>METHODS</b>Velocity-time (v-t) equation of each mini-tablet was deduced by non-linear least square model fit. The difference of combinations in v-t profiles between theoretical value and test value was compared.</p><p><b>RESULTS</b>According to the v-t equations, the combined release behaviors were observed directly from v-t profiles and the test values coincided with the theoretical profiles.</p><p><b>CONCLUSION</b>The programmed DDS, which consist of a variety of mini-tablets with different dosages and combinations in capsules, could be predicted by summing up the v-t equation of each tablet.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Polyethylene Glycols
/
Solubility
/
Starch
/
Tablets
/
Capsules
/
Nifedipine
/
Chemistry
/
Povidone
/
Drug Delivery Systems
/
Delayed-Action Preparations
Type of study:
Prognostic study
Language:
Chinese
Journal:
Acta Pharmaceutica Sinica
Year:
2004
Type:
Article
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