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2004 Pformulate.
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Books
About Coating:
Pharmaceutical
Coating Technology Pharmaceutical
Unit Operations: Coating (Drug, Manufacturing Technology, Series V.3) Pharmaceutical
Principles of Solid Dosage Forms |
|
| 1] What are gums?
Gums or hydrocolloids are naturally occurring, high molecular weight
plant polysaccharides. They are water-soluble with a variety of
properties including gelling, thickening, and film forming. |
| 2) Reasons for
using gums include: |
| film-coating |
sodium carboxymethylcellulose, methylcellulose and other
cellulose derivatives |
| emulsifying/suspending agents |
acacia, agar, alginic acid, guar gum, locust bean gum,
pectin carrageenan, xanthan
gum, sodium carboxymethylcellulose, methylcellulose and other
cellulose derivatives |
| gelling agent |
agar, carrageenans, alginates, locust bean gum, |
| binders |
guar gum, locust bean gum, pectins, sodium
carboxymethylcellulose, microcrystalline cellulose, methylcellulose and
other cellulose derivatives |
| disintegrants |
alginic acid, gellan gum |
| diluents |
microcrystalline cellulose |
| chewable tablets |
microcrystalline cellulose/guar
gum combination |
| modified release agent |
gellan gum, methylcellulose
and other cellulose derivatives, guar gum, locust bean gum, |
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Pformulate/09/23/2004
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