Formulation of Gastroretentive Floating Tablets, sustained release
tablets is the area of research from long time. Most of the time
material used for formulation is either synthetic or semi-synthetic
polymers. The preparation and cost of these polymers have always
been problem for the formulators. Thus, more emphasis was given on
the use of natural materials or combination of their with synthetic
or semisynthetic for sustaining the release. The easy availability
and low cost are the main advantages of these natural polymers.
Also, the biodegradability of natural polymers gives an extra
advantage over synthetic polymers. This study laid emphasis on use
of different types of natural materials as the good
gastroretentive, sustained release polymers in combination. Hence,
various other kinds of material can be utilized to formulate the
Floating systems and release retarding systems which can floated
upto maximum required time and release the drug in specific time
period. Moreover such blends can be used to release the drug in
specific pattern by suppressing the snags of either one or both the
materials.
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