Dispensing 2 Flashcards
Mineral Oil
Liquid Petrolatum
White Petrolatum
White Petroleum Jelly
Petrolatum
Yellow Petrolatum
Petroleum Jelly
Yellow Ointment
Simple Ointment
Yellow Ointment is from the honeycomb of
Apis mellifera
White Ointment component
white wax (bleached and purified yellow wax) + petrolatum
- Absorbs water to become W/O emulsion
- Can be used when presence of water would cause stability problems (antibiotics)
Anhydrous (Hydrophilic) Material
can absorb 3x its weight of water
Aquaphor
Modification of the original formulation which contains anhydrous lanolin (allergy) + stearyl alcohol and wax adds firmness and heat stability
Hydrophilic Petrolatum, USP
a 50% W/O emulsion
Eucerin
- Obtained from the wool sheep Ovis aries;
- Contains NMT 0.25% water
- Purified wax-like substance, cleaned deodorized, anddecolorized
Anhydrous Lanolin / Wool Fat
W/O emulsion already that have the ability to absorb water
-Impart excellent emollience and occlusiveness
Hydrous Material (Emulsion bases)
25-30%water
Hydrous Wool Fat (Lanolin)
Cold cream components
whitewax, spermaceti, almond oil, sodium borate
Cold Cream Aka (2)
-Petrolatum Rosewater Ointment
-Galen’s Cerate
- Resembles creams
-Absorb water, non-greasy, non-occlusive, can absorb serous discharges
WATER REMOVABLE BASES / WATERWASHABLE
creates transparent thin film (stearicacid on skin)
Vanishing cream
Methyl and propyl parabens, SLS,propylene glycol, stearyl alcohol, white petrolatum, purifiedwater, canabsorb 30-50% w/w
Hydrophilic Ointment
No oleaginous component
Water-washable “greaseless”, absorb water to the extent of solubility
WATER SOLUBLE BASES
- Polymer of ethylene oxide and water
PEG ointment, NF
These are semi-solid preparations containing one or more medicinal agents dissolved or dispersed in either o/w or w/o
emulsions They are easier to spread and removed than ointments A dosage form comprising a viscous semisolid emulsion
CREAMS
Jellies
Gel
Many, but not all gels can be classified as semi-solids, others are
magmas
Are semi-solid systems consisting of dispersions of small or
large molecules in an aqueous liquid vehicle rendered jellylike by
the addition of a gelling agent.
GELS