This section is from the book "The Art Of Dispensing", by Peter MacEwan. See also: Calculation of Drug Dosages.
This is the common name for steatins, or spread cerates, preparations intermediate between ointments and plasters, which are spread upon muslin in the proportion of 100 grammes (3xxv.) to 1 metre by 20 cm. (39 inches by 8 inches). The following are typical formulae:
Steatinum Acidi Borici. | |
Powdered boric acid ............. |
|
Benzoated lard ................. |
|
Mutton-suet (rendered)........ |
|
Melt the fats, triturate the acid in a warm mortar with some of the melted fats, transfer to the rest, and stir occasionally until cold.
Resorcin and zinc-oxide steatins are made in exactly the same proportions.
Steatin. Diachylon. | |
Lead plaster................... |
|
Mutton-suet................. |
|
Benzoated lard ................ |
|
Melt together and stir occasionally until cold.
Steatin. Ichthyol. | |
Ammonium ichthyolate........ |
|
Benzoated lard ................. |
|
Mutton-suet........................... |
|
Prepare in the same way as steat. ac. boric. | |
 
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