Latin, Collodium (Gen., Collodii)

Eng., Collodion. Pyroxylin, 40 Gm.; Ether, 750 mils; Alcohol, 250 mils.

This is a liquid preparation, intended for external use, having for its base a solution of pyroxylin or gun-cotton, in a mixture of ether and alcohol.

Official Preparations.

Collodium Cantharidatum

See Cantharis.

Collodium Flexile

Eng., Flexible Collodion. Collodion, 950 Gm.; Camphor, 20 Gm.; Castor Oil, 30 Gm.

Therapeutic Action

Protective.

Uses

As a protective dressing for wounds and as a vehicle for the administration of active agents, as in the. treatment of clavus and various skin diseases.

Administration

They are used locally either alone or with other agents.

In the treatment of clavus:

Collodium Collodion 633

or

Acidi Salicylici.........

gr. xxx

2

0

Ext. Cannabis............

gr. x

6

Collodii Flex.............

.q. s.Collodium Collodion 634

15

0

M.

Sig

Apply twice daily.

Many prescribers add about 25 per cent. of Oleum Ricini to collodion to render it more flexible and to prevent too rapid evaporation.

In the treatment of psoriasis:

Collodium Collodion 635

or

Chrysarobini..........

3j

4

0

Acidi Salicylici...............

gr. xx

1

3

Aethens.................

f3j

4

0

Olei Ricini................

Collodium Collodion 636 x

6

Collodii.....................

.q. s.Collodium Collodion 637

30

0

M.

Sig

Paint on affected parts.