In addition, granule and powder compared to flying, adhesion, aggregation, Hygroscopicity is small; available through particle coating different drug controlled release formulations.
In addition, compared with the powder granules, which scattering, adhesion, aggregation, smaller hygroscopicity etc; controlled release formulations can be obtained by coating particles with different release speeds.
In addition, compared with powder granules, the dispersion, adhesion, aggregation and hygroscopicity were smaller; release preparations get different release rate can be controlled by particle coating.