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41 Cards in this Set

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dilute sucrose solns
excellent media for microorganisms
syrup nf
self preseved soln w/ minimal tendency to undergo crystallization
elixiers
peroral solns + alc (5-40%)
aromatic elixirs nf
22% alc
solvent for drugs
iso-alcoholic elixir
combo of low-alcoholic elixir + high alc elixir(73-78%
aromatic waters
clear
saturated aq solns of volatile oils or other aromatic vol subs
salting out
insoluble layer forms at the top of soln when large amt of water sol drug + aromatic water
prep mts for aromatic water
distillation
soln mtd
distillation
universal mtd

only mtd to prepare strong rose h20 and orage flower h20
spirits or essences
alc or hydroalc soln of volatile subs that contain 50%-90% alc
high alcoholic content
maintains h20 insoluble volatile oils in soln
medicinal spirits
aromatic ammonia water
flavoring agent spirits
compd orange spirit
compd cardamom spirits

stored in tight containers to prevent loss of evaporation
tinctures
alc/hydroalc soln of chemicals or soluble constrituents of veg drug

stable
prep of tinctures
extraction process of maceration or percolation
fluidextracts aka 100% tinctures
liq extracts of veg drugs that contain alc as a solvent
preservative or both
prep of fluidextracts
percolation
astringents
constriction
reduce secretions
used as wet dressings in contact dermatitis
alum acetate
alum subacet soln
caoh soln
mild astingent
lotions as reactant and alkalinizer
antibacterial topical solns
benzalkonium cl
strong iodine
povidone iodine

kill bacteria when applied to skin or mucuous membrane
susp
lotions
magmas
magmas
susp of finely divided material in a small amt of h20
purpose of susp
sustaining eff
stability
taste
basic solubility
suspending agts
hydrophilic colloids
clays
hydrophilic colloids
inc viscosity of water by binding h20 molecules therefore lmtng their mobility or fluidity
- support growth of microorganisms
-require a preservative
-anionic
-insoluble in alcoholic soln
ex of hydrophillic colloids
acacia
tragacanth
methylcellulose
carboxymethylcellulose
methylcellulose
polymer
nonionic
stable at heat and light
carboxymethylcellulose
anionic
soluble in h20
prolonged exposure to heat causes loss of viscosity
clays
silicates that are anionic in aq dispersions

- strongly hydrated
- exhibit thixotropy
thixotropy
property of forming a gel-like structure on standing and becoming fluid on agitation
ex of clays
bentonite
veegum
bentonite
5% magma
veegum
hydrated to a greater than bentonite

more viscous at same conc
other suspending agts - ltd use due to their susceptibility to bacterial attack
agar
chondrus(carrageenan)
gelatin
pectin
gelatinized starch
xantham gum
used in many modern susp formulations bec of its cosolvent compatibility , its stability and its soln high viscosity relative to conc
levigation
add of a suitable nonsolvent
purposes of emulsion
inc drug solubility
inc drug stability
prolonged drug axn
improved taste
imporve appearance
phases of emulsions
liq droplet
aq soln
liq droplet
dispersed , internal or discontinous phase
other liq
dispersion medium, external phase or continous phase