Unguentum Pulveris Cantharidis Vest-Catoriae. Edin. Ointment of the Powder of Blistering Flies

"Take of resinous ointment, seven parts; powdered blistering flies, one part Sprinkle the powder into the melted ointment; and stir the mixture until it stiffen in cooling."

Unguentum Cantharidis, Dub. Ointment of Blistering Flies.

"Take of ointment of yellow wax, half a pound; blistering flies, in powder, one ounce. Form them into an ointment."

These ointments are intended for promoting a purulent discharge from blistered surfaces; and produce this effect sufficiently well when the irritation they excite can be supported, which, however, cannot always be done. The flies should be reduced to a very fine powder, and very intimately mixed with the ointment.

Unguentum Cerae Flavae. Dub. Ointment of Yellow Wax

"Take of purified yellow wax, 142°, a pound; prepared hog's lard, 97°', four pounds. Form them into an ointment."

Unguentum Cerae Albae. Dub, Ointment of White Wax

"This is to be prepared in the same mannereas the former, with the substitution of white for yellow wax."

These are useful dressings to benign ulcers and excoriations, and form the basis of the majority of the compound ointments of the Dublin Pharmacopoeia.

Unguentum Cetacei. Lond. Spermaceti Ointment

" Take of spermaceti, six drachms; white wax, two drachms; olive oil, three fluid ounces. Melt them together over a slow fire, and stir them constantly until they be cold."

Unguentum Cetacei, Dub. Ointment of Spermaceti.

"Take of white wax, half a pound; spermaceti, a pound; prepared lard, three pounds. Make them into an ointment."

These ointments form the ordinary dressings for healing blistering surfaces and excoriations.

Unguentum Creasoti. Lond. Ointment of Creasote

"Take of creasote, a fluid drachm; lard, an ounce. Rub and mix."

A useful stimulant ointment in porrigo scutulata.

Unguentum Elemi. Lond. Ointment of Elemi

1 Unguentum spermaceti, P. L. 1787.

2 Unguentum e gummi elemi, P. L, 1745. Unguentum elemi comp., P. L. 1824.

"Take of elemi, a pound; common turpentine, ten ounces; prepared suet, two pounds; olive oil, two fluid ounces. Melt the elemi with the suet; then remove it from the fire, and mix in immediately the turpentine and the oil; lastly, strain the mixture through a linen cloth."

Unguentum Elemi, Dub. Ointment of Elemi.

"Take of elemi resin, a pound; white wax, half a pound; prepared hog's lard, four pounds. Form them into an ointment, which is to be strained through a sieve while it is hot."

Syn. Onguent d'Elemi et de Terebenthine (F.), Elemisalbe (G.), Unguento di Elemi e Trementina (I.).

These ointments are stimulant and digestive. They are used to keep open issues and setons; and as a dressing to ulcers which do not admit of the application of the adhesive straps.