SEMI SOLID Flashcards
Type of drug delivery where dermatological product is designed to deliver the drug into the skin in treating dermal disorders
TOPICAL DERMATOLOGICAL PRODUCT
Type of drug delivery where product is designed to deliver drugs through the skin (percutaneous absorption) to the general circulation for systemic effects, with the skin not being the target organ
TRANSDERMAL PRODUCT
Are semisolid preparations intended for external application of such consistency that they may be readily applied to the skin with or without rubbing
OINTMENTS
Ointment that is used for treatment of cutaneous infections
MEDICATED OINTMENT
Another term for non-medicated ointment
OINTMENT BASES
Test of Microorganisms for dermatological products
Staphylococcus aureus
Pseudomonas aeruginosa
Organisms tested for rectal, urethral or vaginal route
yeast
mold
Are semisolid preparations containing one or more medicinal agents dissolved or dispersed in either a water-in-oil (W/O) emulsion or an oil-in-water (O/W) emulsion or in another type of water-washable base.
PHARMACEUTICAL CREAM
Advantage of creams over ointment
EASIER TO SPREAD & REMOVE
Methods of preparation for creams
FUSION METHOD
Are semisolid systems consisting of dispersions of small or large molecules in an aqueous liquid vehicle rendered jelly-like by the addition of a gelling agent
GELS
- Thicker and stiffer than ointments
- More absorptive and less greasy than ointments
- Effective employed to absorb serous secretions and therefore preferred for crusting and oozing lesions
PASTES
Example of pastes
Zinc oxide
(Lassar’s Plain Zinc Paste)
Are solid or semisolid adhesive masses spread upon a suitable backing material and intended for external application to a part of the body to provide prolonged contact at that site
PLASTERS
Substance is melted prior to application, cooled and applied with a fine brush
GLYCEROGELATIN
Official Glycerogelatin that is used for the treatment of various ulcers
ZINC GELATIN
(Zinc Gelatin Boot)
Are ointment like preparations intended for warm, external application to a body surface for the purpose of reducing inflammation and/or allaying pain
CATAPLASM / POULTICES
Examples of cataplasm
NUMOTIZINE CATAPLASM
Uses of Ointment
protectants
emollients
lubricants
Give the 2 types of ointment
medicated ointment
unmedicated ointment
Give examples of medicated ointment
Sulfur ointment
Zinc oxide ointment
Whitfield ointment
Compound REsorcinol ointment
Uses of non-medicated ointment
protectants
emollients
lubricants
4 types of ointment base
oleaginous bases
absorption bases
water-removable bases
water-soluble bases
Examples of Hydrocarbon bases
Petrolatum USP
White petrolatum
White ointment
Yellow ointment
Mineral oil
Methods of Preparing ointment
Incorporation method
Fusion method
Melting all the components together by increasing temp
Packaging of ointment
large-mouth ointment jar
metal or plastic tubes
Types of creams
water-in-oil (W/O) emulsion
oil-in-water (O/W) emulsion
Components of a gel
gelling agent
water
solvents
antimicrobial preservatives
satbilizers
drug substance
Mode of administration for gels
skin
eye
nose
rectum
vagina
Components of Plasters
adhesive material
backing material
medicinal substance
Types of Plasters
unmedicated
medicated
plasters for protection & mechanical support
UNMEDICATED PLASTERS
plasters that provide effects at the site of application
MEDICATED PLASTERS
TYPE OF CREAMS
Cold cream
water-in-oil
TYPES OF CREAMS
Hydrophilic ointment
oil-in-water
TYPE OF PLASTERS
Adhesive tape
unmedicated plaster
TYPE OF PLASTERS
Salicylic acid plaster
MEDICATED PLASTERS
Components of Glycerogelatin
Gelatin
Glycerin
Water
Medicinal substance
COMPONENTS OF GLYCEROGELATIN
how many %:
GELATIN
15%
COMPONENTS OF GLYCEROGELATIN
how many %:
GLYCERIN
40%
COMPONENTS OF GLYCEROGELATIN
how many %:
WATER
35%
COMPONENTS OF GLYCEROGELATIN
how many %:
MEDICINAL SUBSTANCE
10%
How cataplasms are applied
should be warmed before application & applied with a piece of cloth
is an air-excluding, soft, pliable, analgesic, splint –like covering for surfaces denuded by wound
PARAFFIN DRESSING, NF
Any material used as covering, protective, or support for a diseased part
SURGICAL DRESSING
semisolid dressing
PRIMARY WOUND DRESSING
antiseptic solutions dressing
WET DRESSINGS
Another term for oleaginous base
HYDROCARBON BASES
- Water free and contain petrolatum and/or modified petroleum waxes or paraffin oil
- retained on the skin for prolonged periods
- Do not permit the escape of moisture from the skin
- Difficult to wash-off (greasy)
- Used for emollient and occlusive action
HYDROCARBON BASES
- Are not easily removed from the skin with water washing
- Useful as pharmaceutical adjuncts to incorporate** small volumes of aqueous solutions** into hydrocarbon bases
ABSORPTION BASES
- Oil-in-Water emulsion resembling creams in appearance
- Are easily washed from the skin and are often called “WATER-WASHABLE” bases
- May be diluted with water or with aqueous solutions
WATER REMOVABLE BASES
- They have the ability to absorb serous discharges
- Commonly referred to as “greaseless” ointment base
- Water-washable, because of the absence of oleaginous material
- Soften with the addition of large amount of aqueous solutions
- PEG3350 (40%)
WATER SOLUBLE BASES