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Clinical pharmacy PharmD program Third level Phytochemistry-1 (PG-504)

General uses of cotton:

1) Textile.

2) Surgical dressings.

3) Source of pure cellulose.

4) Manufacture of explosive “Nitro-cellulose”.

Cellulose derivatives

Cellulose esters:

Cellulose esters are cellulose derivatives which result by the esterification

of the free hydroxyl groups of the cellulose with one or more acids, whereby

cellulose reacts as a trivalent polymeric alcohol. Cellulose acetate phthalate is the

only cellulose ester used as tablet coating.

Some pharmaceutically important cellulose products.

Name Uses

Purified Cotton surgical dressing; it serves as mechanical

(absorbent cotton) protection to absorb blood, mucus or pus

Powdered used as an anti-caking and bulking gent in food
cellulose/ production, tablet diluents, and disintegrating agent.

Microcrystalline Commonly used in vitamin supplements
cellulose.

Oxidized cellulose local hemostatic (artificial clot)

Nitrated cellulose Pyroxylins is a pharmaceutic aid used in the
(Pyroxylin) preparation of collodion, topical protectants and as a
vehicle for salicylic acid in keratolytic preparations.

Cellulose acetate is the only cellulose ester used as tablet coating.
phthalate

Methyl cellulose ▪ Bulk laxative,

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