In the present investigation solid dispersion of olanzapine has been prepared to improve its solubility. Further, using solid dispersion, mouth dissolving tablet was prepared to overcome the problem of swallowing. A Simplex Lattice design was applied using three factors, i.e. superdisintegrants like croscarmellose sodium(X1) crospovidone(X2), and sodium starch glycolate(X3) in tablet formulation. Disintegration time and T50 (Time required to 50% drug release) taken as responses. Solid dispersion showed significant enhancement in solubility of olanzapine. For mouth dissolving tablet, batch containing 5% croscarmellose sodium alone had minimum disintegration time (44 sec.) and faster drug release (T50: 40 sec) compared to other batches.
Keywords
Olanzapine, Solid Dispersion, Solubility, Mouth Dissolving Tablet, Disintegration.
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