OINTMENT Flashcards
Are semi-solid preparations intended
for external applications to the skin or
mucous membranes, usually but not
always, they contain medicinal
agents
OINTMENTS
Are easily spread, their plastic
viscosity may be controlled by
modification of the limitation.
OINTMENTS
Ointments is also known as?
SALVE OR CHRISMA
which prevents harmful substances from coming in contact with the skin
PRETECTIVE BARRIERS
3 Uses of Ointments:
EMOLLIENTS
PROTECTIVE BARRIERS
VEHICLES
which makes the skin more pliable
EMOLLIENT
in which to incorporate medication.
VEHICLES
Classification of ointments based on composition:
OLEAGINOUS BASES
ABSORPTION BASES
WATER-REMOVABLE BASES
WATER-SOLUBLE BASES
Classification of ointments based on penetration:
EPIDERMIC OINTMENTS
ENDODERMIC OINTMENTS
DIADERMIC OINTMENTS
Oleaginous Bases is also termed as?
HYDROCARBON BASES
On the application to the skin, they
have an emollient effect, protect against the escape of moisture, effective as occlusive dressings, can remain on the skin for long periods without drying out, and because of their immiscibility with water, and are difficult to wash off.
OLEAGINOUS BASES
Is a purified mixture of semisolid
hydrocarbons obtained from petroleum. It
is an unctuous mass, varying in color from
yellowish to light amber.
PETROLATUM, USP
Petrolatum, USP is also known as?
YELLOW PETROLATUM AND PETROLEUM JELLY
• A good base for oil-soluble ingredients.
• Forms an occlusive film on the skin.
• Absorbs less than 5% water under normal condition.
• Does not become rancid
• Wax may be incorporated to stiffen the
base.
PETROLATUM, USP
Is a purified mixture of semisolid
hydrocarbons from petroleum that has
been wholly or nearby decolorized.
WHITE PETROLATUM, USP
It is used for the same purpose as petrolatum, but because of its lighter color, it is considered more esthetically pleasing by some pharmacists and patients.
WHITE PETROLATUM, USP
It is also known as White Petroleum Jelly
WHITE PETROLATUM, USP
Ingredients: Yellow wax, Petrolatum
WHITE PETROLATUM
This ointment differs from yellow ointment by substitution of white wax (bleached and purified yellow wax) and white petrolatum in the formula.
WHITE OINTMENT, USP
These bases may be used as emollients, although they do not provide the degree of occlusion afforded by the oleaginous base, and are not easily removed from the skin with water washing, because the external phase of the emulsion is
oleaginous
ABSORPTION BASES
These bases are useful as pharmaceutical
adjuncts to incorporate small volumes of aqueous solutions into hydrocarbon bases. This is accomplished by incorporating the aqueous solution into the absorption base and then incorporating this mixture into the hydrocarbon
base.
ABSORPTION BASES
• Are anhydrous
• Insoluble in water
• Not washable in water
• However, it can absorb water.
• Permit the inclusion of water-soluble
medicaments through prior solution
and uptake of the solution as the
internal phase.
ABSORPTION BASES
A white petrolatum combined with 8%
white wax, 3% stearyl alcohol, and 3%
cholesterol which are added to a water-in-
oil emulsifier.
HYDROPHILIC PETROLATUM, USP
Ingredients:
Cholesterol, Stearyl alcohol, White wax,
White Petrolatum
HYDROPHILIC PETROLATUM, USP
which employs wool alcohol to render white petrolatum emulsifiable and
is superior in its ability to absorb water.
AQUAPHOR
which uses Sobitan Sesquioleate and Arlacel A as emulsifiers (Kessolin) and appears to be superior to the USP base.
POLYSORB