Dosage Form Excipients Flashcards
solvents
water, vegetable oils
co solvents / humectant
ethanol, glycerin, propylene glycol
sweetner
sucrose, sorbitol
buffer
acetic acid, citric acid, glycine, phosphoric acid
preservatives
alcohols, acids, esters, quartenary ammonium compounds
chlorobutanol anhydrous
benzalkonium chloride
sodium benzoate
alcohol
ethanol, benzyl alcohol, chlorobutanol
acids
benzoic acid, sorbic acid
esters
parabens
quart ammoniums
alkonium, amonium
antioxidants
free radical scavengers, reducing agents, chelating agents
free radical scavengers
esters of gallic acid, BHA, BHT, tocopherols, vitamin E
(delayed oxidation)
reducing agents
sodium bisulfite, ascorbic acid, thiols (preferential oxidation)
chelating agents
citric acid, EDTA
(antioxidant synergists)
emulsifying agents
surfactants, hydrophilic colloids (polymers), finely divided solid particles
surfactants
anionic, cationic, zwitterionic, nonionic, sulfonate, idium chloride, oxide
hydrophilic colloids (polymers)
acacia, tragacanth, gelatin
finely divided solid particles
bentonite, mag al silicate, al hydroxide, charcoal
humectant
glycerin, propylene glycol
emulsifier, thickening agent
cetyl alcohol
oil phase
liquid petrolatum
structured vehicle system
polymer: cellulose, xanthan gum, polyvinyloyrrolidone
clay: bentonite, mag al silicate
wetting agent/surfactant
polysorbate 80 (tween 80)
potassium sorbate
buffering agent, preservative